From a Midnight Research Labs mailing list, “how to mount a camera on a cat“.  There are photos and a short video of it in action.

The other night Henry (one of our two terrorist cats) got his head stuck in the loop of a brown paper bag.  He tore through the house like the devil was chasing him.  It scared everyone and him most of all.  When the bag finally came off we found him hiding under the bed.  It would have been nice to have a camera in place for that event.