I recently got one that said they had deposited embezzled money from the Enron thing, and that they had planned to send it to me, but someone else (who I don't know, of course) came to them, saying he was my representative and to send the money to me through him. They even sent (fake) information about where they were going to send the money if I didn't respond. I thought it was mildly clever.
I was thinking about trolling them, but decided against it, despite having (I thought) an awesome plan.