What is a great idea for a Halloween costume for a 13 year old girl??? ?

be a girl joker from that NEW bat man movie that would be cool, or like a punk/emo/goth thing/. ummm you could also be a ganster. Also you could be dead race car dirver or a play boy bunny lol jk. ummm a farmer, a england queen from like the 1500s or like a indina person hoped i helped!!! ")