Laser Tagging is a non-destructive way of using a laser, video camera, computer and projector to apply graffiti to buildings! It’s a lot of fun! You’ll see the GRL Vienna guys Michael Zeltner and Florian Frühauf who rocked Berlin with 5500 lumens of laser graffiti awesomeness. They would like to extend a thanks to Theo Watson and Evan Roth of GRL who came up with the idea, first implemented it and put it out there in the public domain. Lasers, like power tools, can be dangerous. You’re responsible for your own safety!