I created a fish stencil and cut out a bunch of fish from ivory, gray, and blue felt. I then attached them to the wall with poster strips. I had them curve around so it looked like they were swimming in the ocean.
Aquarium in my toddlers classroom. They made the fishes, octopus, whale, turtle and starfishes. All the windows are cover with blue cellophane that creates the perfect aquarium atmosphere for kids to learn about the sea animals.