The two jokes I've come up with recently:
What does a couch say?
[When leaving] "I'm Subaru Outback."
You know. Instead of "I'm Audi 5000." Nothing like a joke based on outdated slang. I think I can get it to catch on in Vermont, though. Seriously-- every other car around here is one. And 3 of my friends' Subarus are white. And so are they. And 2 of them are named Christine. And one of them has a best friend named Christine.
I'll stop rambling now.