Before the Foo Fighters hit the stage at the Sea Hear Now Festival (which I was there for and they rocked out for 2 hours!!!), Dave Grohl was backstage creating artistic masterpieces.
He made a design on a beer bong and instructions on how to smuggle hash into a concert using a cassette tape and now they're being auctioned off for charity! Foo friend Danny Clinch organized it and, once the pieces are sold, will give the money to various charities around Asbury Park.
Watch the video of Dave Van Grohl doing his art and you can go here to see the auction!