I got a good one a few days ago - already deleted unfortunately.
It was well written and was from the FBI. It told me that the FBI had investigated and had recovered my money from a Nigerian Scam that I had fallen victim to. I would be able to claim my money provided that I sent them my full contact information so they could match it up with their case files. There would be a small processing fee, and I would have to pay taxes on the money, but I would be able to get a tax refund once the paperwork was properly filed with the IRS.
I can imagine there would be a bunch of people who would fall for this in the hopes of getting back the money they have already lost.
Steve