How to make rainbow fish costume

How to make rainbow fish costume

Creating a rainbow fish costume can be a fun and colorful project, especially for children’s costumes or themed events. Here’s a simple way to make a rainbow fish costume:


  • A plain blue or silver-colored long-sleeved shirt
  • A plain blue or silver-colored pair of pants or leggings
  • A blue or silver-colored hat or swim cap
  • Assorted colored craft foam sheets (in rainbow colors)
  • Craft glue or hot glue gun and glue sticks
  • Scissors
  • Fishing line or clear thread
  • Safety pins
  • Large googly eyes
  • Old socks (optional, for fish fin sleeves)


  1. Prepare the Base Outfit:
    • Put on the blue or silver shirt and pants or leggings. These will be the base of your rainbow fish costume.
  2. Create the Fish Scales:
    • Using the colored craft foam sheets, cut out various sizes and shapes of fish scales. You can make them in rainbow colors or choose your favorite colors. The more scales you make, the more vibrant and “rainbow” your fish costume will appear.
  3. Attach the Scales:
    • Use craft glue or a hot glue gun to attach the scales to the shirt and pants. Start at the bottom and work your way up, overlapping the scales slightly as you go. Continue this process until you cover the entire shirt and pants with scales. Allow the glue to dry completely.
  4. Create the Fish Tail:
    • To make a fish tail, cut out a large, elongated piece of craft foam in a shape resembling a fish’s tail fin. Decorate it with scales.
    • Attach the fish tail to the back of the pants using glue or safety pins.
  5. Make Fish Fins (Optional):
    • If you want to add dorsal fins or side fins, you can create smaller fin shapes and attach them to the sides and back of the shirt using glue.
  6. Fish Hat or Swim Cap:
    • If you have a blue or silver-colored hat or swim cap, you can decorate it with scales and fins to match the costume. Attach them using glue.
  7. Add Googly Eyes:
    • To create the fish’s eyes, attach large googly eyes to the hat or swim cap using glue.
  8. Fin Sleeves (Optional):
    • If you want to create the illusion of fish fins on your arms, you can cut the tops off of old socks and attach them to your arms using safety pins or glue. Decorate them with scales and fins.
  9. Finishing Touches:
    • Make sure all the glued pieces are secure and allow them to dry completely before wearing the costume.
  10. Wear and Enjoy:
    • Put on the complete rainbow fish costume, including the shirt, pants, hat, and any additional accessories you’ve created.

Your rainbow fish costume is now ready to make a splash at parties or events. It’s a creative and vibrant costume that’s sure to stand out!

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