Bring the magic of the ocean to your craft table with this fun and creative craft activity! Perfect for summer camps, afterschool programs, recreation centers, and classroom craft time, this easy activity lets kids decorate their own sea creatures while exploring creativity and imagination.
Using our Diecut Cardboard Sea Animal Shapes Pack, kids can punch out the shapes and decorate them however they like. The shapes pop out easily from the cardboard sheets, making them simple for groups of all ages to use.

Each pack includes 24 ready-to-decorate sea creatures featuring four popular ocean animals:
- Octopus
- Seal
- Shark
- Seahorse
With six of each design, there are plenty of creatures for everyone in your group to decorate.
These sturdy diecut shapes range from 10″ to 15″ long, making them large enough for creative decorating and perfect for display on bulletin boards, collages, or themed ocean scenes.
Materials:
Decorating Materials:
You can keep this craft simple with classic coloring materials, or go all out with embellishments. Try offering a variety of decorating supplies so participants can personalize their sea creatures.
- Markers
- Crayons
- Colored Pencils
- Paint (acrylic or watercolor)
- Oil Pastels
- Wiggly eyes
- Glitter or glitter glue
- Gems & sequins
Providing a mix of textures and colors encourages creativity and makes every sea creature unique.
How to Make Your Sea Creatures:
1) Punch out the shapes from the cardboard sheets. They pop out easily and are ready to decorate.
2) Decorate your sea animal using markers, paint, glitter, stickers, or other craft supplies.
3) Add fun details like wiggly eyes, shiny sequins, or glitter accents.
4) Let dry if needed, then display your finished ocean friends!
This craft works well as a drop-in craft station, structured craft time, or part of an ocean-themed activity day.

Create a Collaborative Underwater Scene
Once everyone has decorated their sea creatures, turn the activity into a group art project!
Roll out a sheet of blue bulletin board paper to create an ocean backdrop. Participants can help build an underwater world by adding their decorated sea animals.
To bring the scene to life, try adding:
- Seashells
- Felt cut with scissors into wavy seaweed shapes
- Blue roll paper for the background (this under the sea roll works perfectly!)
- Blue tissue paper for waves
- Sand or sand colored paper along the bottom
- Little bubbles using a hole punch
- Use glue to secure it all to the background!
The sea animals can be glued onto the mural, or you can leave them movable for dramatic play and storytelling. Kids love pretending their creatures are swimming through the ocean!
This collaborative display makes a great summer camp decoration, ocean-themed bulletin board, or hallway art installation.

Perfect for Ocean & Summer Themes
This craft is a great fit for programs planning:
- Ocean or sea life theme weeks
- Beach or summer camp activities
- Under the Sea craft days
- Marine biology learning units
- Afterschool craft programs
It’s an easy activity that works for a wide range of ages and allows participants to explore creativity while celebrating the wonders of ocean life.






