Oh, atheist bake sales, how I love you.
This one is from the campus group at the University of California, Irvine:
Cookies cost $0.50.
Or the price of your soul.
… you can pay the traditional way by giving us 50 cents for a baked good. However, if you are feeling more adventurous you can sign one of our soul contracts and transfer ownership to [Atheists, Agnostics, and Rationalists]. In return you will get 1 very tasty cookie.
I guess I’ll have to pay the cash.
(AAR is an affiliate of the Secular Student Alliance.)