This is the cup I decorated for Gabby's younger sister, Dani. Dani is has a lot a interests, including soccer, so it was hard to pick just one theme for her cup. I wanted hers to different than her sister's cup, though. Since Dani likes to play Guitar Hero and because she is also into drama and acting - I finally decided to use the Rock Princess cart. The font, phrase and stars are all from the same cart.
In the end, I was happy with how they both came out. It was hard to get good pictures of these, though. Hope you can tell what they look like, and maybe you'll get a little inspiration for decorating your own tumblers.