Anyone remember "pogs" from the 1990s? These 1" round disks (cardboard or plastic) were used to play the milk cap game. (I never played it, but that's what Wikipedia says.) The pogs craze even intersected with Las Vegas casinos a bit, when someone produced a set of 5 (or maybe more?) pogs with casino logos on them -- MGM Grand, Debbie Reynolds, Luxor, Excalibur and Westward Ho. (I don't know why these 5 other than, the maker somehow got permission to use their logos?) The back of each one has a COA signed by someone called "Trader Ric's". The signature is Richard xxx (can't make out the last name).

I vaguely remember purchasing these, maybe at a chip show, but not sure. The COA says 30,000 were produced, but it's likely IMO that at least 29,000 went to the landfill at some point!