Thanks a lot, Vincent. I just spent 20 minutes distracted by your hack.
We recently spent an afternoon at a local children's museum. My three year old spent a good portion of that time enthralled by a Mac running an application that generated kaleidescope-like creations called wallOVERs. I'm not embarrassed to say that I sat next to him for most of that time and worked on my own creations. I was thrilled to find a version online (and then upset that it was marginally less interesting than the version in the museum). In any case, the perfect site for any kid who can work a mouse: /www.protozone.net/ASHOCK/AJwall.html.
Enjoy. And then try to get back to work.