I have 8 crested duck eggs. I just hatched one of these with a double crest and Ducks-R-Us hatched out 6 out of 6 from these eggs. I believe there were four of those that were crested. $18 includes shipping. Please PM me as I don't check my email very often. The little blue one is the one I just hatched. It is a couple weeks old now and I can see it has a double crest.