How to Make a Sea Animal Costume

Updated April 17, 2017

Costumes cost money. Whether they are for a school function, Halloween or other forms of dress-up, purchasing a ready-made sea animal costume can pose a challenge. You may not be able to find the exact costume you're looking for, or the costume you want might be too expensive. Instead of fretting at the costume store or online, you can create your own sea animal costume from yourself.

Decide what type of sea animal you want to be. Browse the Internet for sea animal costume ideas or look through a costume catalogue for ideas. Base your selection on the overall difficulty of creating the costume yourself, as well as the theme or event that the costume is for. Some popular sea animal costumes to choose from are exotic fish, dolphins, seahorses, whales, sharks, jellyfish, mermaids and mystical sea creatures.

Find pictures and costume ideas related to the sea animal you have chosen. Use the Internet, browse costume catalogues and magazines for homemade costume ideas that fit within the particular animal niche you have chosen. Note the colours, patterns and equipment associated with the type of sea animal costume you want to make. Ensure that these items are readily available in your area before proceeding.

Create your costume based on your crafting abilities. A skilled seamstress could purchase pre-made costume patterns to create a professional-looking costume entirely from scratch. Sewing patterns are based on age group, sex and difficulty. These patterns can be modified and are a guide for sewing the overall pattern, but the decorations and details are up to you and can go a long way in making your costume more creative. For someone who is not skilled at sewing, creating a costume using foam boards, paint, hot glue and decorative craft items such as glitter, feathers or loose fabric is a good option.

Decorate the face and other exposed skin. When creating a sea animal costume, your face and hands will most likely be exposed. Use costume make-up to paint over those exposed areas and match the overall colours and patterns of the costume. For example, a clown fish costume would be bright orange with stripes of white. Decorate your face with bright orange face paint and accent it with stripes of white face paint that correlate to the stripes on the costume. Use ski masks, hats or beanies to cover your head and face. Decorate head coverings with the appropriate colours and use craft glue to attach features such as ears, fins or scales.


Save time and use swim fins on feet and hands to create fish fins rather than purchasing and sewing them from fabric or foam. Create masks out of paper mache and newspaper and finish with the appropriate coloured paints.

Things You'll Need

  • Costume catalogue
  • Sewing pattern
  • Sewing machine
  • Fabric
  • Craft glue
  • Feathers, glitter and other craft embellishments
  • Paint
  • Hot glue gun
Cite this Article A tool to create a citation to reference this article Cite this Article

About the Author

Shailynn Krow began writing professionally in 2002. She has contributed articles on food, weddings, travel, human resources/management and parenting to numerous online and offline publications. Krow holds a Bachelor of Science in psychology from the University of California, Los Angeles and an Associate of Science in pastry arts from the International Culinary Institute of America.