More fantasy markings?

I've just been mucking about with the Custom Creator Tool, trying to create a pretty crazy dog, and running into some creative blockage.

Right now, if you want to create a fantasy-type dog, the two marking options you have are basically Rosethorn and Moth. All other markings can be found on dogs naturally (or can plausibly appear on a dog).

I think it would be really neat to see some more unnatural markings, like tribal swirls or leopard spots. Just some stuff to jazz it up, add a little more variety in the appearances.

Thoughts? Suggestions? Yes, no, maybe?