yes they have been made. I hatched mine in 2010 or 2011 and proved it out the following year. The bad part is you cant tell a difference between them and a super raptor. babies hatch out solid white with red eyes and stay that way for a while. you have to test breed them to see if they are a w/y for sure or you can cool them a bit to try to get some pattern out of them. but that isn't always a 100% method to see if it is or not. the only way to be 100% sure is to test breed it. I have actually stopped trying to make them because you cant tell. The crossing of w/y to w/y wont give you 100% w/y as well so there is no really good way to tell. plus the Universe (super snow eclipse w/y) looks better any way IMO and you can tell they are a W/Y from birth.