E's daycare teacher had him use this for the cutest project. She painted green fingerpaint on his hand, then had him to a sideways handprint (so the fingers were pointing to the side). Then she painted blue paint all around the hand. Last, she drew an eye and a smiley mouth on the heel of the handprint, and the handprint looks like a fish. The fingers look like Betta fins. This blog has lots of fun ideas.
One Fish Two Fish Red Fish Blue Fish Craft with Corn Syrup Paint