My friend sells different color glow paint powders, this is not cheap crappy stuff either. He brought some purple powder over and I had an extra body for my Z-car that is clear. So we decided to paint it. It looks ubelievably awesome. We turned out the lights after charging it with a black light and it glowed incredibly. We took some video footage which we're working on. But for now I just have a pic that was taken in the dark. Unfortunately, as usual with pics it doesn't do it justice. But here's the link:
http://www.glowinc.com/model_cars.htm