Jail Guitar Doors.
Not only are the graphics on these pretty bad-ass, but the proceeds go to a damned good cause: buying musical instruments, equipment and lessons for prison inmates. It's a project that originally got its start in the UK thanks to Billy Bragg, but was also picked up in 2009 on this side of the pond.
Here's a message on the merch from the legendary Wayne Kramer, former guitarist from the MC5 and spearhead of JGD:
"I know prison reform isn't exactly at the top of the list of favorite topics of conversation during the holidays. We all have busy lives and there's plenty in the world to be concerned about, but I also know that there are a lot of people who are interested in seeing our country live up to its precious principles of justice and equality. So, Jail Guitar Doors is making this conversation one about positive change, and you can help us by joining in to carry the message. If you'd like to support the JGD-USA mission, consider this fine gift for your justice loving friends and family who also happen to rock."