In 2005, two friends attached 30 red, helium-filled balloons to a video camera, set the bundle adrift over San Francisco, and then (realizing what they had done) chased after it to retrieve the camera. The Balloon Project was born.
The project website houses videos of aerial footage and recovery missions for the 8 balloon flights worldwide, so far. Alternately, if you have a video camera taking up space and weren't sure how to rid yourself of it... this would probably work.