Tony Hawk has teamed up with Tom Petty, Paul McCartney, Bob Dylan, Adam Yauch, Ben Harper, and others to help build free public skateparks for at-risk youth across the U.S.
Tom drew a self portrait on skate legend Mike Vallely's board, which also includes lyrics to "I Won't Back Down." You can bid on the board here now.
All proceeds go to the Tony Hawk Foundation!