If They Land Face-Up They're Mine! The Legend of POGS

You remember POGS. The small, round, cartoon-adorned collectibles that started out as milk bottle caps. In 1991, an elementary school teacher in Hawaii introduced them to her students, thinking it would improve their math skills. As the game grew in popularity, businessman Alan Rypinski purchased the trademark and founded the World Pog Federation, kicking off the '90s phenomenon.