I like the paper idea. Never though of that. I used to play around with kicking a falling piece of paper as many times as I could before it hit the ground. I may play around with using x-rays for their wing flick paper. We have some laying around there.
Yeah the gravel crane rolls were placed upon me at an early age. The guy putting us through them was a tyrant. But I tell you, to this day I can do a roll on any surface at any speed and not feel an ounce of pain nor make any noise.