1. Moral relativism. Some of you may have noticed this is a favorite of mine. I'd probably use the "saved by faith, not works" sort of thing as the basis: Morality, in that view, is just a mortal pastime. You can do whatever you want, so long as you luck out in believing in the right stone idol.
2. Epistemological relativism/instability/whatever. The truth is one thing one day, and then another thing the next. Whichever is convenient. One example that comes to mind is the archaeopteryx: Some Creationists say it's all bird, and others say it's all reptile with faked feathers.
3. Newage Retro Hippies. Do everything I can to associate them with "modern" forms of woo, like alternative medicine, psychics, flying saucer cults, etcetera and suggest Creationism is a gateway to these things. Might compare belief in Reiki to faith healing, for example.
4. Godwin like crazy. Quote Hitler:
"The fox remains always a fox, the goose remains a goose, and the tiger will retain the character of a tiger." - Adolf Hitler, Mein Kampf, vol. ii, ch. xiInclude a bit on Sarah Palin mocking fruit fly research and compare it to Trofim Lysenko's description of biologists as "fly-lovers and people-haters."
Any other ideas I could use? Sound clips and captured images would be nice, too.