I came across this on a site called Deadspin.com. Deadspin is a sports site with a very snarky tone to it. Click the link to see the best piece of sports memorabilia that I have seen in a while. Be warned, for those who cannot stand foul (ha,ha) language, you may want to think twice.
Here is some background on the piece. It is a baseball signed by all time great Mickey Mantle. Mantle has written a little message for the owner of the ball. It is going for about $9,000 right now. If you have the cash, I think it is well worth the price.