I found a site with ideas to help me come up with one and it was a tough decision between " draw a person peeling off their skin" and " draw a stack of books".I went with the stack of books but if anybody wants to draw the person peeling off their skin you go right on ahead. I just don't know how many people are even up for drawing a person with all skin intact and standing still. Stack of books seems flexible because you can play with different angles and work on making things look 3 dimensional.