A while back I sold Tdec an Indian head cent with some awesome die cracks and it was a snow variety. I regret selling it. Those die cracks were geourgous.
I posted a thread similar to this about 2 weeks ago... lots of good responses there, you should check them out: http://www.cointalk.com/t67143/
Thats easy, it has to be the 1924D wheat penny that I had gotten in change as a kid. I was so proud of it. My wife and I really needed the money at the time and the $30 (ebay) I got for it helped.