20 of the biggest Scottish school playground crazes The Tamagotchi - Japanese for 'cute little egg' - was hugely popular in the Nineties. PIcture: TSPL Pogs, slap bracelets and of course, Tamagotchis. We’ve looked out 20 of the most popular playground fads from the last 50-60 years. Baby Names 2019: here are the top 10 most controversial baby names for boys