Zazzle has these:
EVEN BETTER, Angelic Pretty (random googling, wasn't even looking for brand) has this:
The AP is exactly the kind of one I'd prefer. On the down side, I can't afford that kind of money right now (am looking at the zazzle ones though). Do you guys know of anything in the style of the AP one? It doesn't have to be a replica (although that would be nice), just one that looks like a chocolate bar.