After rolling out his many excellent Coverpop visualizations (but before getting tapped by Yahoo! to work on similar cool stuff for them), Flickr Hacks coauthor Jim Bumgardner created this amazingly fun kaleidoscope viewer for YouTube videos.
Just plug in any YouTube URL (or choose one of the nine preset movies provided by Jim) to return the moving picture as a tumbling, repeated, symmetrical pattern. The screen capture in this post uses my joking Knowledge of Innovators test video as a target.
If this whets your appetite for more, here are a couple of Jim’s other ventures into YouTube hacking: