what can make a good birthday present for a teenager?

what can make a good birthday present for a teenager? Tick the category if you would like to get something like that as a present. In the right columnwrite some comments according to the model.1) trendy clothing: I would like to get new jeans and trendy boots. But i would like to choose them myself as my parents don't share my taste in clothes.2) jewellery: 3) accessories: 4) mobile telephones: 5) gears like Ipods, MPT players, etc: 6) sports equipment: 7) computer equipment: 8) musical instruments: 9) CDs or books: 10) your variant: