I just learned about this one today. Cameratoss is a term that is much what it sounds like. Darken the room, turn on specific point light sources, set camera for longish exposure, trigger and toss. I might not be trying this with my new camera, but maybe a small point and shoot with the tether around my wrist.

Link to Cameratoss Flickr group. (photo by davespilbrow via Flickr)