After all your eggs have been decorated to your satisfaction, dip the last one into a dye cup.
Continue by dipping the egg into each remaining cup.
Continue dipping the egg into each color until it reaches your desired poo color. Depending upon the order and duration of dipping, your egg may be hued baby poo green or vindaloo-poo orange.
Poo Brindle Brown eggs 2013. Grandpa would be proud.