I would go with a concert ticket. There are alot of good concerts comnig up soon. Ozzfesttix are really expensive , like 80- 100 so go with something a lil lower on the price range.
If you dnot get a good kcik from that one, why dont you take him out. where i live we have a fun n stuff , they have go kart racing, and arcade games, roller skating, putt putt , batting cages. Why dont you get himsomething liek that.
Worse case scenario, get him something you know he will use, like a box of junk, with cologne, a cd u mixed for him (not lovey- fun), some car wax, guitar picks, a thing of blank CD's, a mouse pad he can put ur picture in ( those are so cute!) Stupid stuff that will make him smile.
I did that for my ex, and i put a fortune cookie in there b/c we always ate chineese, and a pair of kinky boxers ( im 18! LOL ) , a new flashlight he could use at work, some axe deoderant, a box of condoms, some chewing gum, and a car airfreshener.
I dont know if you would liek to do someting liek that, but i hope ihelped.