Or perhaps a Smokey Cream or Perlino...
Would you, technically, get a Palomino, Buckskin, or Dun Zorse foal?
Or what if you bred a Zebra to a loudly marked Sabino? Sabino n' Stripes?
Bay + Zebra = Regular bay Zorse?
I'm rather fond of the Bay Zorses xD
(disclaimer: I do not have a mare, or a zebra, or a zorse, although I wish I had all three because they are just to utterly cute XD)