"The Jester Dragon's Random Cult Generator" is a useful and entertaining nine-page mini-publication authored and illustrated by veteran gamer and cultist William T. Thrasher. 

Cults threaten adventurers, civilization, and the existence of the universe itself. Whether they are sacrificing virgins, summoning tentacled horrors, or infiltrating every level of society, it is inevitable that your heroes are going to have a run-in with cultists at some point in their adventuring careers. And, after all, hidden temples hold the best treasure and no one builds them like a cult. But you’re a busy Game Master and have more important things to do than agonize over creating a new secret religion every week. So, once again, the Jester Dragon is ready to do all the hard work for you, with a series of tables allowing you to quickly roll up every aspect of a sinister cult, from the god it worships to the color of the priest’s robes. Grab your d100s, say a quick prayer to Grog-Nardsoth, lord of randomized numbers, and create a cult to hound your players for years to come!