Help! What Should I Buy Him! Please Ideas!?

Ok, So i like this guy, and hes asked me what i like and I told him which hints me hes going to buy me something really nice. I want to totally surprise him. Hes a rocker, with a little bit of hip-hop/rap kind of a guy and kinda a stonner. He plays guitar. Hes able to drive. He loves music, but nothing like itunes cards or anything like that it has to be something super nice, but not to nice between $20-$50. maybe a little more. I have no clue I'm totally stuck. Please any ideas would be helpful :D