At that age, just a nice note and some chocolates/heart-shaped sweets would be nice. Think of what you would like to receive from him, then you can give him that so he can have an idea for next year, it works for me.
If he's a gamer (chances are he is) find out the games he likes and look for gaming merchandise on eBay or something. Eg. If he likes Pokemon, get him a pikachu beanie. It's really alternative and hell love it! :)
If you two are serious (not one of those couples who break up every 2 weeks) you could get him some cologne (American Eagle has that amazing smelling body spray =] ) and like a teddy bear and a nice, heart-felt card from you. :) Also, if you are crafty and you two have been together for a while and if you have pictures of you and him together, you could go to Wal-Mart and have some pictures of you two printed out and buy one of those extra large cards and fill it up with pictures of you two. :) I don't know, I guess I'm just naming things I would like if someone were giving them to me lol. I'm sure he will like whatever you have to offer. :) I hope everything works out for you. :) Good luck sweetie. :)
i gave my boyfriend a teddy last year and he is 11 and i am 10 and i found him throwing it in to the bin at school i almost hit him the teddy was massive and it was ordered one with our pic in the middle of it it was me and him kissing and he then didnt get me anything so i was really up set:[ but we are still going out we have ben going out for three years love u babe!!!!!!!!!!!!!!!!!