BC,

What I would like to know is WHY??? First of all, Ducky has crystals in his urine and is already stressed out. I think what you plan on doing is stupid, irresponsible and you need to think twice about it. These cats are not your accessories to do with what you feel like. Dyeing them is just plain ridiculous. If God wanted Sphynxes to be the colors of the rainbow, he would've made them that way. If you wanted a Sphynx with color, you could've easily gotten one from the breeder. Please, leave them the heck alone.

With all due respect Karen, "testing" a spot of the cat to make sure it is not sensitive to dyes??? We're talking about a live, precious animal, not a damn couch.