Goose eggs are equivalent to about three large chicken eggs, and their shells are much harder. Buying a blown shell (one whose yolk and white has already been removed) can run you upwards of $14 at a crafts store, whereas a single egg is as little as $2. To have your eggshell and eat your egg too, poke a hole in either end of the egg, and blow the egg out into a bowl yourself. Make yourself a goose-egg frittata and use the eggshell for decoration.