Paper Hornet:
You simply fold (I roll them) small pieces of paper, or whole sheets of paper, as small and rectangular as possible, and get them into this shape: > You then slingshot them out of a rubber band, placed between the thumb and forefinger. Rather difficult, actually, you have to account for the lift the paper itself has, the spin the paper will have, the power of the rubber band, and the angle of which you pull on it.
I think it's easier to be a rifleman or a hunter. 
Banned because I'd like to hear about your Math Teacher issues now.
Xer0 \^/