Just Keep Swimming With Our Range Of Sea Creature Costumes
If you know it’s better down where it’s wetter then take it from me, CostumeBox’s range of sea creature costumes will transport you to where the seaweed is always greener in no time! Within our collection of sea creature costumes and accessories, you’ll be able to find everything from Nemo, octopuses, shark costumes and more for adults and children right here in one place - how convenient! Shop with CostumeBox now to just keep swimming through our endless supply of sea creature costume ideas.
Sea Creature Costumes For Adults Guaranteed To Make Waves
If you’re looking for the perfect sea creature fancy dress for your next sea themed costume party, CostumeBox has all the answers! With adult costumes including sharks and octopuses, you’ll be sure to find a sea creature costume you’ll love within our range. These are some of our favourite sea creature costume ideas that’ll be sure to have you swimming in no time:
- If your child is a fan of the Baby Shark craze, then why not surprise them by wearing one of our Baby Shark adult costumes that you will find within our range of sea creature costumes. With mummy, daddy and baby shark to choose from, they would also make for the perfect sea creature fancy dress group costume. Be sure to check out our Baby Shark category to shop our full range and you’ll be singing ‘baby shark do do do do’ all night long!
- Alternatively, if you don’t want the Baby Shark theme song stuck in your head for the weeks following your sea creature fancy dress party, do not fret, as we also have some other fun sea creature costumes including octopus costumes for adults! Throw on one of our octopus costumes and you’re guaranteed to have the best and most hilarious sea themed costume at the party.
Adorable Sea Creature Costume Ideas For Kids
If your little ones want to get in on the underwater fun, we also have a great selection of sea creature costumes for kids and toddlers. Within our range of sea themed costumes for kids, you’ll be able to find all their favourite sea creatures including Finding Nemo to Baby Shark costumes and more so you know you’ll be guaranteed to find something they will love. Here are some of our favourite sea creature costume ideas for kids:
- If you’re after an adorable fish costume for your little one for their next sea creature fancy dress party, you can’t go wrong with one of our adorable Finding Nemo costumes. Released in 2003, ‘Finding Nemo’ quickly became a family favourite loved by both children and adults alike and we have several different costumes that cover all your favourite characters. Our Finding Nemo fish costumes include adorable Nemo and Dory dresses and jumpsuits for girls and toddlers.
- Another great sea creature costume idea for kids is a shark costume, and whether they want to be the famous ‘Baby Shark’ or just a regular shark, we have all the costumes you need. If you have decided to dress up as one of the Baby Shark characters, picking up one for your kids as well could make an adorable parent and child sea creature costume!
No Sea Creature Fancy Dress Would Be Complete Without Matching Party Supplies
If you’re thinking of hosting a sea creature costume party, you will of course need some under the sea party supplies to make your theme come to life and here at CostumeBox, we have everything you need to host a memorable party. Within our range of under the sea party supplies, you’ll be able to find everything you need to make your guests feel as though they’ve stepped into the deep blue ocean. From coral reef backdrops, fish cutouts to shark themed tableware, you’re guaranteed to find something to compliment your sea themed costume so shop now!
Dive Into Our Great Delivery Options
Once you’ve swam through our gorgeous range of sea creature fancy dress costumes, we know you’ll be keen to take the plunge for yourself, so you’ll be delighted to know that we offer a fast delivery* option on Australian orders, as well as fast delivery options to ensure no one misses out. And if your fins weren’t already flapping with joy, they soon will be as we also offer Afterpay and Zippay payment options on all Australian orders. Be sure to shop our sea themed costumes now before they swim out the door!
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Skeleton Octopus Decoration 15cm
$20.00
Item Includes:
- Skeleton Octopus.
Features:
- Intricate skeleton detailing for a realistic look.
- Eight tentacles for authentic octopus appearance.
- Compact size makes it easy to place anywhere.
Sizing:
- 15cm / 5.9in.
Material:
- Plastic.
Skeletal nightmare.
Dive deep with this Skeleton Octopus Decoration 15cm and capture the imagination with its ghostly white form and intricate skeletal design. Though not anatomically correct, it's still perfect for adding a touch of the macabre to your Halloween decor or themed parties in keeping with the theme with your skeletal displays. Its lightweight structure makes it easy to position anywhere, from table displays to hanging decorations. Pair it with other sea-themed props or skeletons for an unforgettable underwater graveyard scene. Ideal for spooky oceanic adventures this Halloween.
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NRL Sharks Mascot Kids Mask
$12.00
Item Includes:
- Mask.
Features:
- NRL Official Merchandise.
- Shark mascot half mask.
- Inside of mask is lined with the Cronulla-Sutherland Sharks logo.
- Eye openings for visibility.
- Elastic backing.
Sizing:
- One size fits most kids.
Material:
- 100% Polyester.
- Spot clean only.
Please note: Cape not included.
Representing the Sharks.
Dress up your little footy fan in their favourite team with this officially licensed NRL Sharks Mascot Kids Mask. This half-mask features the Sharks mascot design, complete with eye openings for clear visibility and an elastic backing for a secure fit. Inside, the lining is printed with the official Cronulla-Sutherland Sharks logo. A fun accessory to wear to the NRL games and cheer on your team. Complete the look with the coordinating Sharks cape from the range.
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Orange Tropical Fish Kids Costume
$64.99
Item Includes:
- Tunic.
Features:
- Fish-shaped tunic.
- Orange and white printed clown fish detail.
Fit and Sizing:
- See size chart image for details.
Fabrics and Care:
- 100% Polyester.
- Hand wash only.
Please note: Shirt, pants and shoes are not included.
Just keep swimming.
This Orange Tropical Fish Kids Costume is a vibrant ensemble perfect for underwater adventures. This eye-catching fish-shaped tunic features bold orange and white stripes, mimicking the lively design of a clownfish. Designed with large, playful eyes, it brings the ocean's charm to life. Easy to wear, it's ideal for Book Week, school performances, or underwater themed parties. Pair it with face paint or aquatic accessories for a complete look that will make waves at any event.
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Happy Dolphin Professional Mascot Costume
$3,599.99
Item Includes:
- Special Order Mascot.
Fit and Sizing:
- The Mascot is designed as a one size fits most, for adults ranging from 5'4 (162cm) to 6'2 (183cm) and chest size to 60 (152cm). Other sizes can be specially ordered.
Please Note: As a special order item, this product is non-returnable, non-refundable and excluded from all promotional offers. The Mascot will be despatched directly from the U.S.
Special Order Item. Please allow 5 to 7 weeks for delivery.
These amazing Professional Mascots are hand made to order and come complete with head, body, mitts or hands and feet. This Mascot is specific and unique to you, so any colour may be chosen to represent your sporting team school colours etc. Additionally, the mascot head is equipped with a built in fan and ventilation panels for easy breathing. You can also purchase a cooling vest and cooling collar to help keep you cool during those hot promotional events. We also sell Mascot Parade Feet as an option for the mascot or as a separate item if your mascot will be spending a lot of time outdoors.
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Disney Finding Dory Orbz Clear Balloon
$7.99
Item Includes:
- 1 x Balloon.
Fit and Sizing:
- Balloon measures 41cm/16in.
Material:
- Foil.
Please note: Balloons do not come inflated. Helium not included.
She just kept swimming...
Make a splash at your Finding Dory birthday party with this adorable Disney Finding Dory Orbz Clear Balloon. This balloon features Nemo and Dory swimming through the ocean. Combine with our range of Finding Dory party supplies including party cups, lolly bags, tablecovers, party favours and more. Party time!
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Axolotl Inflatable Adult Costume
$108.99
Item Includes:
- Inflatable Costume.
- Air Pump.
- Battery Pack.
- Instruction Sheet.
Features:
- Pink axolotl inflatable costume.
- Zippered closure at the back.
- Face opening.
- Battery operated fan for inflating.
Fit and Sizing:
- One size fits most adults.
Fabrics and Care:
- 100% Polyester.
- Spot clean only.
Please note: Requires 4x AA Batteries (Not Included).
A wonder of the deep blue.
This Axolotl Inflatable Adult Costume is a delightful pink full-body suit that brings the enchanting creature to life. Crafted from durable materials, this inflatable costume features a built-in air pump for easy inflation, ensuring you stay comfortable while making a splash at any event. Perfect for Halloween, costume parties, or themed events, this costume allows you to embody the playful and curious nature of the axolotl.
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Grey Shark Kids Costume
$41.99
Item Includes:
- Hooded Tunic.
Features:
- Grey long-sleeve hooded tunic.
- Fins on the sleeves.
- Tail at the back.
- Shark character hood with eyes and teeth.
- Slot for face and an open base.
Fit and Sizing:
- See size chart image for details.
Fabrics and Care:
- 100% Polyester.
- Hand wash, hang dry.
Make a splash.
This Grey Shark Kids Costume is a fin-tastic outfit that will have your child swimming in excitement. Your little one will be the most adorable of the deep in this grey long-sleeve hooded tunic. It's designed for easy wear and all-day play, featuring cute fins on the sleeves and a fun tail at the back. The shark character hood, complete with friendly eyes and soft teeth, frames your child's face perfectly with a dedicated face slot. Ideal for ocean-themed parties, school performances, or just a fun day of imaginative play. Pair it with face paint for a complete underwater adventure look.
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Lobster Toddler Costume
$58.99
Item Includes:
- Jumpsuit.
- Hood.
- Booties.
Features:
- Full-length red and orange jumpsuit.
- Plush lobster claws and tentacles.
- Red lobster character hood with eyes, antennae and chef hat.
- Red and orange booties with anti-slip base.
Fit and Sizing:
- See size chart image for details.
Fabrics and Care:
- 100% Polyester.
- Hand wash, hang dry.
Adorable sea creature.
Transform into the cutest crustacean in the sea with this Lobster Toddler Costume. This vibrant red and orange costume features a plush, textured body that mimics the look of a real lobster, complete with claw-shaped mittens and tentacles. The hood is adorned with playful eyes, antennae and topped with a chef's hat. Matching booties with an anti-slip base completes the costume. Designed for easy wear, it slips on effortlessly, allowing your child to scuttle around comfortably. Perfect for ocean-themed parties, or school performances, this costume is sure to make a splash.
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Blue Octopus Trunk Or Treat Car Inflatable 1.5m (DC PLUG)
$70.00
Item Includes:
- Inflatable Decoration.
Features:
- Inflatable blue menacing octopus car decoration.
- Mouth can hold treats for trick-or-treaters.
- Built-in LED lights.
- Weather resistant.
- Built-in fan.
- Includes strings for easy setup.
Sizing:
- Length: 1.5m / 4.8ft.
- Height: 91cm / 3ft.
Material:
- Plastic.
Please note: This item has a DC Plug.
Make your car the star of the trunk or treat.
Get ready to make a monstrous splash at your next trunk-or-treat event with this Blue Octopus Trunk Or Treat Car Inflatable 1.5m. This isn't just a decoration; it's a spectacularly spooky sea creature that has taken over your car, ready to delight trick-or-treaters. This menacing blue octopus, with its long, wavy tentacles, is a guaranteed showstopper. The best part? Its mouth is designed to hold candy and treats, making it a fun and interactive way to hand out goodies. Its weather-resistant material and built-in fan make for an easy setup with the included strings. Perfect for bringing some deep-sea spookiness and a ton of fun to your Halloween.
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Red Lobster Professional Mascot Costume
$3,799.99
Item Includes:
- Special Order Mascot.
Fit and Sizing:
- The Mascot is designed as a one-size-fits-most, for adults ranging from 5'4" (162cm) to 6'2" (183cm) and chest size to 60" (152cm). Other sizes can be specially ordered.
Please Note: As a special order item, this product is non-returnable, non-refundable and excluded from all promotional offers. The Mascot will be despatched directly from the U.S.
Special Order Item. Please allow 5 to 7 weeks for delivery.
These amazing Mascots are hand-made to order and come complete with head, body, mitts or hands and feet. This Mascot is specific and unique to you, so any colour may be chosen to represent your sporting team, school colours etc. Additionally, the mascot head is equipped with a built-in fan and ventilation panels for easy breathing. You can also purchase a cooling vest and cooling collar to help keep you cool during those hot promotional events.
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Sharky Professional Mascot Costume
$3,599.99
Special Order Item. Please allow 5 to 7 weeks for delivery.
These amazing Professional Mascots are hand made to order and come complete with head, body, mitts or hands and feet. This Mascot is specific and unique to you, so any colour may be chosen to represent your sporting team school colours etc. Additionally, the mascot head is equipped with a built in fan and ventilation panels for easy breathing. You can also purchase a cooling vest and cooling collar to help keep you cool during those hot promotional events. We also sell Mascot Parade Feet as an option for the mascot or as a separate item if your mascot will be spending a lot of time outdoors.
Item Includes:
- Special Order Mascot.
Fit and Sizing:
- The Mascot is designed as a one size fits most, for adults ranging from 5'4 (162cm) to 6'2 (183cm) and chest size to 60 (152cm). Other sizes can be specially ordered.
Please Note: As a special order item, this product is non-returnable, non-refundable and excluded from all promotional offers. The Mascot will be despatched directly from the U.S.
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Blue Dolphin Professional Mascot Costume
$3,599.99
Special Order Item. Please allow 5 to 7 weeks for delivery.
These amazing Professional Mascots are hand made to order and come complete with head, body, mitts or hands and feet. This Mascot is specific and unique to you, so any colour may be chosen to represent your sporting team school colours etc. Additionally, the mascot head is equipped with a built in fan and ventilation panels for easy breathing. You can also purchase a cooling vest and cooling collar to help keep you cool during those hot promotional events. We also sell Mascot Parade Feet as an option for the mascot or as a separate item if your mascot will be spending a lot of time outdoors.
Item Includes:
- Special Order Mascot.
Fit and Sizing:
- The Mascot is designed as a one size fits most, for adults ranging from 5'4 (162cm) to 6'2 (183cm) and chest size to 60 (152cm). Other sizes can be specially ordered.
Please Note: As a special order item, this product is non-returnable, non-refundable and excluded from all promotional offers. The Mascot will be despatched directly from the U.S.
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Grey Dolphin Professional Mascot Costume
$3,599.99
Item Includes:
- Special Order Mascot.
Fit and Sizing:
- The Mascot is designed as a one size fits most, for adults ranging from 5'4 (162cm) to 6'2 (183cm) and chest size to 60 (152cm). Other sizes can be specially ordered.
Please Note: As a special order item, this product is non-returnable, non-refundable and excluded from all promotional offers. The Mascot will be despatched directly from the U.S.
Special Order Item. Please allow 5 to 7 weeks for delivery.
These amazing Professional Mascots are hand made to order and come complete with head, body, mitts or hands and feet. This Mascot is specific and unique to you, so any colour may be chosen to represent your sporting team school colours etc. Additionally, the mascot head is equipped with a built in fan and ventilation panels for easy breathing. You can also purchase a cooling vest and cooling collar to help keep you cool during those hot promotional events. We also sell Mascot Parade Feet as an option for the mascot or as a separate item if your mascot will be spending a lot of time outdoors.
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Hammerhead Shark Professional Mascot Costume
$3,599.99
Item Includes:
- Special Order Mascot.
Fit and Sizing:
- The Mascot is designed as a one size fits most, for adults ranging from 5'4 (162cm) to 6'2 (183cm) and chest size to 60 (152cm). Other sizes can be specially ordered.
Please Note: As a special order item, this product is non-returnable, non-refundable and excluded from all promotional offers. The Mascot will be despatched directly from the U.S.
Special Order Item. Please allow 5 to 7 weeks for delivery.
These amazing Professional Mascots are hand made to order and come complete with head, body, mitts or hands and feet. This Mascot is specific and unique to you, so any colour may be chosen to represent your sporting team school colours etc. Additionally, the mascot head is equipped with a built in fan and ventilation panels for easy breathing. You can also purchase a cooling vest and cooling collar to help keep you cool during those hot promotional events. We also sell Mascot Parade Feet as an option for the mascot or as a separate item if your mascot will be spending a lot of time outdoors.
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Fish Professional Mascot Costume
$3,499.99
Special Order Item. Please allow 5 to 7 weeks for delivery.
These amazing Professional Mascots are hand made to order and come complete with head, body, mitts or hands and feet. This Mascot is specific and unique to you, so any colour may be chosen to represent your sporting team school colours etc. Additionally, the mascot head is equipped with a built in fan and ventilation panels for easy breathing. You can also purchase a cooling vest and cooling collar to help keep you cool during those hot promotional events. We also sell Mascot Parade Feet as an option for the mascot or as a separate item if your mascot will be spending a lot of time outdoors.
Item Includes:
- Special Order Mascot.
Fit and Sizing:
- The Mascot is designed as a one size fits most, for adults ranging from 5'4 (162cm) to 6'2 (183cm) and chest size to 60 (152cm). Other sizes can be specially ordered.
Please Note: As a special order item, this product is non-returnable, non-refundable and excluded from all promotional offers. The Mascot will be despatched directly from the U.S.
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Iridescent Metallic Hologram Shiny Mermaid Womens Skirt
$48.99
Item Includes:
- Skirt.
- Necklace.
Fit and Sizing:
- See size chart image for details.
Fabrics and Care:
- 90% Polyester, 10% Spandex.
- Hand wash, hang dry.
Please note: Top not included.
Find me under the sea.
Splash in the waves in this elegant mermaid in this Iridescent Metallic Hologram Shiny Mermaid Womens Skirt. This gorgeous skirt features a purple and blue metallic hologram shiny design and is the shape of a tail. The costume also comes with a gold chain with attached white pearls to either place around your waist or wrap around your wrist like a bracelet. Complete your mermaid look with accessories from our mermaid range.
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Shellfish Headband and Mask Set
$15.99
How shellfish of you!
Go kooky, be original with this hilarious Shellfish Headband and Mask Set. Perfect for Under the Sea parties, Mardi Gras and a range of other themes, this set is a great addition to any party.
Item Includes:
- Headband.
- Mask.
Fit and Sizing:
- One size. Mask comes with attached elastic.
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BodyArt Turquoise Paint Jar 200ml
$22.99
Great face and body paint
Available in a range of colours, this BodyArt Turquoise Paint Jar is great to use on your face and body. Jar includes 200ml of paint and is great for Halloween, theatres, concerts and dress-up events. Whether you want to be a witch, a character from Avatar or a ghost, we have you covered. Literally!
Item Includes:
- Jar of paint.
Fit and Sizing:
- 200ml / 6.5oz.
Please Note: Easily removeable with soap and water. Do not get near eyes.
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Colourful Creatures Cocktail Napkins Pack of 20
$5.99
Colourful creatures.
Decorate your next animal-themed childrens party with these adorable Colourful Creatures Cocktail Napkins! The napkins come in a pack of 20 and feature 8 different animals. Sure to keep your party colourful yet clean!
Item Includes:
- 20 x Napkins.
Sizing:
- 13cm x 13cm / 5in x 5in.
Fabric and Care:
