Fun:Deism
Deism is the belief that only Genesis 1:1 is valid in the Bible. After that, God left and never came back. There are two primary sects within deism: Gastrodeism and Ichtysdeism, the former says that the Almighty went to lunch and is (presumably) still voiding his bowels and is too preoccupied with this to care about you, while the latter says that God just went fishing. Even though He's supposed to be omnipotent, he can't catch one single goddamn fish so His son can make more.
[edit] What Deism is not
Deism is not Dism, which is the worship of the letter "D". Why someone would do that is a question akin to the number of licks it takes to get to the center of a Tootsie-Pop: the world may never know. Then again, we found that it does take about 200-ish licks, so we may find out. Just don't tell Mr. Owl. He thinks that it takes three licks.