They passed these out to players in the WSOP. I was able to get two by asking at the registration desk. In 2003, they were only giving them out to players and persons in their database. Fortunately I was in the dbase, but unfortunately I was only able to get one of the 2003. There are previous years, 2001, 2000, 1999 (I think).
This one is available on eBay.