I just had to post this as it is such a creative use for the Rub-ons. I can't take credit for this one. My daughter Emily (13) used our Rub-ons to decorate her case for her retainer. She also used some of the sticky gems too.
So of course all of the 13 & 14 year old girls loved it. So she then did her phone case and has had several requests from friends to decorate their cases too!