I have goose eggs from my mutt geese that I have never tested fertility on. These eggs I have been saving and blowing for craft uses. They are great to make a large easter egg display from. We sand, then paint, then seal with something like modge podge. Eggs $1 each plus actual shipping. You blow them yourself. I don't have the lung power to keep blowing eggs and I don't have a handy dandy gadget to do it for me. Goose eggs are heavy and this will effect the shipping prices.