I saw this billiards related item on Antiques Roadshow and thought I would share a link for those who don't normally watch it. It is a special eight ball that president Truman used and the details are in the script in the lower right corner.
http://www.pbs.org/wgbh/roadshow/archive/200804A39.html
http://www.pbs.org/wgbh/roadshow/archive/200804A39.html