Nailology

Clip your nails from left to right at different heights. If your nails are short you may only be able to do true or false. If your nails are long, create a scheme for multiple choice questions, eg: 1/4 cut is A. you may be able to pull off more then one answer per nail if your good at nail clipping. this only works in those times when you manage to get your hands on the answer sheet.