Graphic artist Jon-Paul Bail wields an X-Acto knife to cut a stencil from Rubylith gelatin -- a decades-old technique. Each layer can take as many as 10 hours to complete, but the Firehouse team prefers it to using stencils because of the greater control. "We're all vandals at heart," said Bail. "We're the East Bay Obey."

Photo: Cat Wade/Wired.com