Has you seen this video yet on how graffiti artists have discovered creative ways to use blue light. I still remember when Constellation 3D was a NASDAQ stock. I don't know if it's a good thing or a bad thing for the graffiti community. When I called my broker to ask him if I could get some free stock when Constellation 3D was down to zero, the answer was no. Now it's being used for hi-def DVDs, but doesn't run on old DVD players. When I think of that, my hat's off to graffiti artists.
Get in on the rage. Check out what you need to build your own laser tagging machine. I don't know if this site is on the level, but I've eaten worse things from recipes obtained from the web.