Emu eggs are also fairly large, equivalent to roughly eight chicken eggs. They're popular in the art world, and you may actually have an easier time finding a blown emu egg for decorative purposes than an edible one. Their distinct green outer layer hides a blue middle layer and a white base layer, and artists get really creative with etching and carving them. Emu laying season runs from around November to March or April in the U.S., so that's the best time to source them.