R.D.
At that age, I liked some of the same stuff. How about:
~ Black light (with some posters?)
~ Hand-held video game (maybe Poker....I liked Yahtzee!)
~ Gift certificate for a (new and used) video game store
~ Tickets to an event (concert, sports game, I-max movie)
~ Dinner reservations for a date either with you or if he has a girlfriend (I love "dates" with my son!)
~ Gift card for QuikTrip (or other gas station)