Dont know how big your going, but what about a TV for her room? Surround sound with speakers and jacks? an Entertainment center for the tv. How bout a Kindle? ( or whatever the ereaders are called)..How bout a Smoothie Maker? It might encourage better eating habits?
A digital camera?
A crest spinbrush? (makes brushing fun!)
http://www.spinbrush.com/
Sparkle fingernail polish? (stocking stuffer)
A Scooter
A pogo stick (I want one still!)
A bike
Inexpensive Camcorder
Roller Skates
Electric Organ ( I had one and LOVED IT!)