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[Childcare] Ocean-themed craft ideas! From wall displays to 3D projects

In summer, ocean-themed crafts are a common activity in childcare.

Ocean motifs feel refreshing and are perfect for the season.

Sea creatures like fish and crabs are fun for children to make.

However, finding age-appropriate ideas and new forms of expression can be challenging.

So, we’ve gathered a collection of ocean-themed craft ideas here.

You’ll find a variety of projects, from flat drawings to three-dimensional creations.

Please use these as a reference and enjoy a fun summer with the children! Note: Since the children’s creations are treated as works, the term “seisaku” (制作) is used in the text.

[Childcare] Ocean-themed craft ideas! From wall displays to 3D projects (11–20)

For Teachers: An Ocean-Like Waterbed

[Summer Craft] Make an ocean-like waterbed using vacuum storage bags! [For Teachers]
For Teachers: An Ocean-Like Waterbed

A waterbed that gives you a fluffy, floating sensation as if you were drifting on the sea.

It’s something kids will want to hop on and play with, so let’s make one in a shape that evokes an ocean vibe! First, we’ll create the fish and decorations to go inside the waterbed.

Since they’ll be submerged, it’s best to use water-safe materials like clear plastic cups, milk cartons, and straws.

Next, prepare a large compression/storage bag and fill it with water tinted with blue paint.

Once the water is in, add the decorations you made, along with sequins and beads if you like, seal it tightly, and reinforce the edges with vinyl tape—then you’re done! Try climbing on and playing with it.

A Stroll by the Sea with the Boing-Boing Jellyfish

[Kindergartens & Daycare] Fun to Move! July “Poyoyon” Jellyfish Sea Walk – Art & Craft
A Stroll by the Sea with the Boing-Boing Jellyfish

Jellyfish that swim all jiggly and fluffy are so cute, aren’t they? Let’s make a craft themed around those adorable jellyfish taking a stroll through the sea! To capture that jiggly jellyfish feel, it’s best to add a mechanism that creates movement.

After drawing a jellyfish on construction paper, attach an accordion-folded strip of paper behind it to act like a spring.

That way, when you touch it, the jellyfish will wobble and jiggle, making it fun for kids.

Around the jellyfish, draw fish and seaweed or add origami pieces to create a lively ocean scene.

When coloring the jellyfish, use paints with extra water to bring out their translucent look!

Drawing an ‘ocean’ with colored ice

[Summer Craft] Painting with Colored Ice! [For 1-Year-Olds]
Drawing an 'ocean' with colored ice

Let’s take a peek into an underwater world using refreshing ice paints.

To make ice paint, place your favorite paints or food coloring into each section of an ice tray, add water on top, and mix.

Insert a stick to make a handle, then put it in the freezer until it freezes.

While the ice paint is freezing, draw sea creatures on white drawing paper using a white crayon.

Once the ice paint is ready, brush the colors over the paper with your drawing.

The areas you drew will repel the ice paint, and your picture will magically appear.

If the teachers at a daycare or kindergarten draw the pictures and let the children do the coloring, even very young kids can enjoy this activity with ease!

Fish Hide-and-Seek

Preschool/Kindergarten: August ‘Hide-and-Seek in the Waves’ Painting/Craft
Fish Hide-and-Seek

Introducing “Fish Hide-and-Seek,” an activity that depicts an underwater scene.

First, use a round sponge dauber (tanpo) and paint to dab colorful dots onto construction paper to create the background.

Finger dabbing is fun, too.

Next, fold the top edge of the base slightly and cut the lower part into wave shapes.

Adjust this step to suit the children’s ages—switch to straight cuts, for example.

Make fish, seaweed, and rocks from origami or colored paper, and glue them onto the base to finish.

You can also lift the waves to play a game of finding the hidden fish.

Sea creatures made from toilet paper rolls

[Sea Creatures Craft] An easy-to-make adaptation video by a childcare worker using toilet paper rolls
Sea creatures made from toilet paper rolls

Let’s use toilet paper rolls to make sea creatures.

You can also adapt them for a fishing game, so there are lots of ways to have fun.

First, use glue to attach origami paper in colors that match octopuses, squids, fish, and so on to the toilet paper rolls.

Once you’ve wrapped the entire roll, fold the top and bottom edges inward.

Cut slits with scissors, wrap the strips around a pen to curl them, and make the octopus or squid legs.

To make a fish, after cutting the slits, fold the tips diagonally in the same way.

Draw faces with a marker.

Add a paper clip, and they transform into fishing game pieces!

Handmade fishing

Super Easy Homemade Toy: Indoor Fun with Fishing 🎣 [How to Make & Introduction]
Handmade fishing

On summer days spent indoors, let’s play “homemade fishing.” Make the “fish” out of paper cups, jelly cups, toilet paper rolls, or colored paper placed inside plastic bags, and attach magnets with tape.

People will love it if you make a variety like turtles, jellyfish, and crabs.

For the “fishing rod,” use chopsticks and string, and tape a magnet to the end of the string.

If you create an “ocean” by lining a milk carton or cardboard box with flyers or newspaper, it will feel even more atmospheric and fun.

[Childcare] Ocean-Themed Craft Ideas! From Wall Displays to 3D Projects (21–30)

[Aluminum Foil] Ocean Motif

Let’s make shiny shells and fish using aluminum foil.

First, stick aluminum foil onto construction paper, then cut out shell and fish shapes with scissors.

Put them into a bag, add a little bit of about three different colors of paint, and seal it.

Now you’re ready! Have the children spread the paint over the shapes by pressing and rubbing the bag with their hands and fingers.

Once the paint has spread all over, take the pieces out of the bag and use a cotton swab to draw eyes and scale patterns.

You can’t do this step once the paint dries, so be sure to do it before it dries.

Painting both sides and hanging them as decorations is also a cute idea.