Clipping: Ideas For A Design On the Hindend?

I'm clipping my horse next week, and I need ideas for a design on hindend! I want something sort of unique, not letters like her name or initials or something :p We do eventing and live in FL, her show name is Feinbrands Fantom and her barn name is Fanny. Last year I did a superman symbol, but called it supermare..because she's a mare(; But I need ideas for this year because I have noo idea what to do! It can be simple to do, or it can be pretty complicated, my trainer is REALLY good at doing difficult designs and such.

I've seen a Haflinger stallion (fairly sure he was a stallion) that was clipped and had patches shaped like hearts on his rump in a sort of appy-blanket type pattern. It was very cool and unique. Here is a video of the horse, it even explains how they did the pattern in the description.