Create a crawling crab with light and your hands.
Craft Project Directions:
To make a crab hand shadow you will need a light source like a flashlight or candle and a light colored wall.
Put the light source on a stand and position yourself between it and the wall.
To make the shadow, bend and position your fingers and hands into the shape pictured in front light before the wall.
See if you can make the crab slide back and forth like it would in real life.