Mickey Mouse

Layer 1: Note, large (use the round parts of the note to make the ears)
Layer 2: Oval,  black (nose)
Layer 3: Grin, black (smile)
Layer 4-5: Circle, black (eye dots)
Layer 6-7: Oval, white (eyes)
Layer 8: Beret, white (nose)
Layer 9-11: Oval, white (face; see diagram below)
Layer 12: Circle, black (head)