The modern city is characterized by aggressive neon signage and in-yer-face billboards that can be seen as a proxy for the commercialization of our society. In response, Graffiti Research Lab has developed an arsenal of technologies like LED throwies, graffiti-writing caption software and mobile urban projectors that allow individuals to stake their own claim to a piece of the cityscape. Affordable DIY components facilitate a form of urban protest that carries on the graffiti tradition using state of the art high tech.