When rubber bands just aren't enough for the potential cubicle border conflicts and project ownership disputes in the office, this handy mini cannon is just what the doctor ordered. Yes, this cannon uses real black powder, so head on down to your local armory and pick a few grains up.
I keep looking for the place on their website to say this is all a joke, it doesn't look that way. Fascinating.
This comes via pocketartillery.com.