Exquisite Corpse

This game works best when alternating bathroom breaks with a friend. Not actually in the bathroom, weirdo.

Using the crease in a napkin draw the top half of a monster above the crease. Extend the waist just below the crease as a reference for the next person. Draw the bottom half of a different monster connected to the lines left below the crease. Unfold and be mystified by your creation.