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  1. Lil Mermaid Sequin Toddler and Girls Costume
    AU$39.99
    AU$39.99
  2. Seaweed Boa
    AU$14.99
    AU$14.99
  3. Mermaid Long Wavy Auburn Wig
    AU$29.99
    AU$29.99
  4. Mermaid Blonde Wig
    AU$23.99
    AU$23.99
  5. Clam Shell Bra
    AU$4.99
    AU$4.99
  6. Turquoise Glitter Peep Toe Womens Shoes
    AU$69.99
    AU$69.99
  7. Shark Hood
    AU$17.99
    AU$17.99
  8. Xotic Eyes Mermaid Kit
    AU$34.99
    AU$34.99
  9. French Sailor Mens Costume
    AU$88.99
    AU$88.99
  10. Marine Sailors Hat
    AU$8.99
    AU$8.99
  11. US Doughboy Sailor Hat
    AU$5.99
    AU$5.99
  12. Boutique Sailor Womens Costume
    AU$76.99 AU$49.99
    AU$76.99 AU$49.99
  13. Squid Mens Costume
    AU$119.99
    AU$119.99
  14. Silly Shark Infant and Toddler Costume
    AU$96.99
    AU$96.99
  15. King Neptune Mens Costume
    AU$89.99
    AU$89.99
  16. Spongebob Candle Set Pack of 4
    AU$12.99
    AU$12.99
  17. Spongebob Squarepants Mask
    AU$4.99
    AU$4.99
  18. Spongebob Squarepants Favour Container
    AU$4.99
    AU$4.99
  19. Spongebob Beverage Napkins Pack of 16
    AU$4.99
    AU$4.99
  20. Spongebob Squarepants Crepe Streamer
    AU$5.99
    AU$5.99
  21. Spongebob Squarepants Confetti
    AU$5.99
    AU$5.99
  22. Spongebob Lunch Napkins Pack of 16
    AU$6.99
    AU$6.99
  23. Spongebob Squarepants Party Hats Pack of 8
    AU$5.99
    AU$5.99
  24. Spongebob Squarepants Wall Decorating Kit
    AU$12.99
    AU$12.99
  25. Spongebob Thank You Cards Pack of 8
    AU$5.99
    AU$5.99
  26. Lil Mermaid Girls Auburn Wig
    AU$24.99
    AU$24.99
  27. Blue Starfish Chip and Dip Platter
    AU$5.99
    AU$5.99
  28. The Little Mermaid Ariel Jumbo Birthday Banner 3m
    AU$12.99
    AU$12.99
  29. The Little Mermaid Ariel Party Game
    AU$7.99
    AU$7.99
  30. The Little Mermaid Ariel Party Confetti Value Pack
    AU$6.99
    AU$6.99
  31. The Little Mermaid Ariel Scene Setter Wall Decoration
    AU$11.99
    AU$11.99
  32. Tropical Fish Swirl Decorations
    AU$4.99
    AU$4.99
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Under the Sea Costumes, Accessories and Party Supplies

 

Dive into our ocean full of under the sea costumes and accessories at CostumeBox. Explore the world under the waves as your favourite sea creature -- from crabs and clownfish to seahorses and sharks. If you'd rather sail the seas than swim in them, you'll have an arrgh-mazing time in a pirate costume. Law-abiding seafarers may prefer our sailor costumes for an under the sea dress up idea. If you want to make a splash, we've got the best range of mermaid costumes in Australia so water you waiting for? Go well-armed to your under the sea themed party in an octopus costume or a full-body dolphin costume that's sure to get the seal of approval.

 

Your guests will have a whale of a time with our huge range of under the sea themed party supplies. The summer sea and summer shell ranges are great for grown-ups who've already got their sea legs. For the little swimmers, their favourite sea-themed shows like Spongebob and The Little Mermaid come in coordinating ranges for a fintastic party. For kids who prefer a bit more bite, the Shark Splash party supplies will take their friends into deeper waters, so beware!