How to restore the skeleton white in the mini world with plasticine?

The skeleton white in the mini world is restored with plasticine as follows.

1. Take white mud, knead a round skull, and then punch out depressions in the eyes, nose and mouth.

2. Fill the depression with black clay to pinch out the uneven tooth effect.

3. Pinch a different little skull in the same way, and a simple skull will be pinched out.