Jewellery or a gadget, depends what shes interseted in
Gift Cards
Yes, Sonic the Hedgehog is a good gift for a 17 year old boy.
Barbies, Stuffed Animals, Littlest Petshop, or Pretend Cook things. I have a four year old sister and that's what she got, and she LOVED them all. Hope this helps!
If you get her/he a gift it should be there favorite animal.
a girlfriend
Anything
Jewelry
IPod touch 200.00
If the 11 year old is responsible, it is a good gift. They are a little pricey, so I would base it on how he has treated his other belongings previous to this.
if i had a 15 year old boy i would give him a phone or a labtop
A ring or flowers. Mabye a gift card to a store.
cd's or a ipod