Very interesting blog!
I was just looking at other blogs and found this one, Camera Toss, which has photographs taken when tossing a camera. Excellent idea!
Another idea is to write with any bright LED or flashlight. You get some pretty cool shots from doing this.
This was taken with a digital camera on a tripod, and then using a bright bicycle tail light I wrote my name. Actually wrote it backwards, since I was standing in front of the camera.