Lou Zocchi was available at GenCon 2015 to do this presentation. Lou is still manufacturing dice at you can purchase them at http://www.gamesciencedice.com/?AffId=16 Lou is a legend in the halls of tabletop gaming, when TSR started producing redbox Dungeons and Dragons he was the man putting the dice in the box. He was the first American manufacturer of polyhedral dice and hold several dice related patents. Here is a link to a wikipedia page on Lou Zocchi https://en.wikipedia.org/wiki/Lou_Zocchi Here is a interview with Lou from a few years back https://boardgamegeek.com/blogpost/38414/interview-lou-zocchi-first-dice-idea-i-was-shown-s