|John Schwenkler compiled the web classic "Guide to Wacky Court Cases", including the famous 1971 case of United States vs. Satan, a landmark class action suit against the Price of Darkness himself. Unfortunately, the lawsuit was shelved due to a technicality.
Other must see cases include a man who sued himself for trying to raid his own trust fund, a court ruling that a house is haunted by poltergeists and therefore its seller must take it back, and more.
Link: Wacky Court Cases.
If you like the doll to the left, it's a Qeester.