What should i buy her?

she is my bestest friend. we like like each other soooooo much, but her parents dont let her have a bf till she is 16 (in december she will be 16.) she is on vacation in canada and will be back in town this weekend. she said she bought me a keychain with a buncha crazy/weird/random things on it lol. thats the kinda girl she is :) i wanna get her something too, but she said not to go overboard. something simple. ANY IDEAS? thanks :)