My Best Friend In The Whole Worlds Birthday!?

ok , i have an amazing friend who is turning 13. for my 13th birthday , she got ame a cute little coach purse, about 70 dollars. i have 55 dollars, and i was wondering what a good present was to give her. she gets a lott of things from her parents, like clothes and other stuff like that , and idon'tt know what to get her.do youu haveanyy ideas?? i want it to be original, so nothing she would expect. since she also got me vera wang perfume for christmas, idon'tt want to get her a coach purse orperfumee HELP! her birthday party is on the 11th of march and we are going to a mall. idon'tt want to wait untill then to get her a present but if you cant come uWithth anything suggestions for then would work too! THANKSS:D