It's called "reverse graffiti" or "grime writing," and rather than covering a wall in paint, Cameron and Moose actually clean a portion of the area they're working on. Some stencils, a few helping hands and a high-pressure power washer are the tools at work, and the resulting image not only illustrates how polluted public surfaces can be, it's also wonderful spin on a form of art that's typically frowned up.
Click past the jump to watch a reverse graffiti Tesla Roadster come to life, a project Cameron and Curtis coordinated with German's SZ-Magazin. Also, click through the gallery to get a closer look at some more of Marc and Paul's work, including the Renault Twizy. If you are interested in learning more about Marc's unique work, feel free to email him – Cameron @ Cameron2210.com or check out his website using the link below.