Hole Punch Chips
Material: paper chips from a hole punch machine.
Not quite what I expected. I really had to apply a LOT of air pressure to get the chips to fly, and the flash (bounced off a white ceiling) combined with a slightly slow shutter to imply that some of the chips were coming BACK to attack me. The one on my moustache had to be dlslodged forcibly.
The mess was considerable. They covered about thirty square feet of floor when all was said and done, and the cat still has a few stuck to her nose.
Note to self: next time, use higher shutter speed. Oh, and go outside first.