500
To make a cameo, first get a thick shell from the sea. Cut off a round piece. Then, find the top, middle, and bottom layers of the shell. Glue the bottom of the shell to a stick, and hold it as you work. Next, draw a face on the middle. Then carve out the face.
What do you do before drawing a face on the middle?
What is glue the bottom of the shell to a stick