What does he like? My son spent all of his birthdays away at camp for the past 5 years. Yes, even his 16th. He came home ON his birthday. So we had gifts for him and his choice of cake (cookie cake). Just the family (parents and sibling), and we all went out for dinner at his choice of restaurant. He did get keys to a car (husband's old 277,000 mile car), but he couldn't drive it alone for about 2 weeks. Here, you have to wait 1 year and 1 day from the date of your learner's permit issuance. You can get that on your 15th birthday, but, since he was away at camp, and then the weekend... he didn't get that on his birthday but several days later. So his class D license was delayed a few days past his 16th birthday as well.
curious... is that the law in NY? Never heard of needing to be 16 and a half.
We didn't just wrap up the car key, though, we bought him a nice keychain for it also. :)
But, I'd ask my son what he wanted. Music he likes? Get the the CD and let him upload it to his iTunes. Give him gas cards to use when he *does* have a vehicle to drive?