I was just reading about the trend of 'camera tossing' - where otherwise perfectly sane people throw their cameras into the air, either on a long exposure or using the camera timer to release the shutter. There's even a popular flickr group dedicated to the art.

When I was a kid we used to toss disposable cameras up into the air and see if the shutter would trigger when it hit the ground, but throwing my 20d into the air doesn't quite have the same appeal!

On a related note Kathleen pointed out the new Eyeball Camera, which I'm sure will also be spawning a flickr group anytime soon...