This is one of my favorites. Casino Itaipu, Paraguay. Both sides the same, no other markings. A lady who plays trivia, was going to visit her Mother, who works in health care in Paraguay. I had been showing people my sample chips and asking if they had any laying around in the dresser.

The casino didn't want anyone taking chips away, but the lady convinced them that one of each wouldn't hurt. By the way, these are not from Casino Itaipu, but from another casino that uses the same chips. That's why they didn't want them, because it was a couple hundred miles to get more chips!