How about a white polydactyl?
Heres another pic of her with her babies in case it wasn't clear enough of her toes
Here's a good one.. she had 6 babies and 4 were solid white
Here is Booker... Im not sure what you would call him but he sure was a pretty boy RIP baby!
And here is my loving Tiger.
If I can help with anymore, please let me know. I have tons of pic!