Shopping for a teenager

Perhaps the light bulb will flash before getting to the mall and I will know the perfect gift to give a new teenager on her 13th birthday.  Jeez, can we afford a Little Kitty ipad?  Sure, but that's not what I'm going to find.  Help!
It would have to be something with a mirror, glittery yet functional, like a jeweled calculator/mirror combination.  That may be a tall order.  Maybe thirteen bottle rockets and a fancy bottle decorated with mirror glass from which to shoot the fireworks.  That would involve playing with matches.  Perfect.  The light flashes.