The mixture of semen, poop, and old urine. Hmm you can actually make a desert out of that, take a poop, roll i out into a long shape, kinda like a sausage, open the middle slightly from both ends, stick some of the semen inside it, close it up, and let urine surround it on the outside on a pastry dish. Stick a small candle on it and you got yourself a perfect birthday desert.