I make uniform bows and headbands for a private school here and the woven headbands sell great to the older girls there. I'm attaching a pic as an example. The headbands in the pic were actually not made by me. A HG offered these for sale this spring and I bought them from her. But I make my own now.
Also, what about making her some cute thin headbands with glitter ribbon? You could also make a regular navy grosgrain ribbon headband with an interchangeable loop to add the korker, flower clips, bows, etc.