1. First, take a mass of red clay, knead it into an oval shape, flatten it slightly, pound a hole in the middle with a tool, then pinch an oval clay as a head and fill it in.

2. Then knead the black clay into small eyes, carefully stick it on it, and add a pink face.

3. Next, pinch out two ellipses, dig out a triangle at one end, pinch out the shape of crab claws, then pinch the red clay into a slender strip, cut it into six small pieces, and stick it on both sides of the body as crab feet.

4. Finally, take the blue clay, flatten it to make a round mat, put the cancer on it, and draw a mark on the bottom with a pen. Simple ultra-light clay cancer will be pinched.