More awesome research! At MIT, a computer game you can play using a stream of urine.

http://web.media.mit.edu/~hayes/mas863/urinecontrol.html

"Users aim at a series of jumping hamsters, with input position on the urinal corresponding to a target position on the screen above. A successful hit turns a hamster yellow, makes it scream and spin out of control, and rewards the player with ten points."