Dice Players in Antiquity
It is well-known that the Mishnah in Sanhedrin 3:3 states that dice players are invalid witnesses. If you were wondering what one of these dice may have looked like, here is one that was for sale at an auction a few years ago. It sold for $17,000.
For more on the subject see Joshua Schwartz, “Gambling in ancient Jewish society and in the Graeco-Roman world,” in Jews in a Graeco-Roman World (1998) 145-165.