I also loved playing with clackers (they developed hand-eye coordination) and still have an orange pair. They were later “recalled” because people were getting concussions with them (user and bystanders).
Never opened, still in their original packaging Win Industries Clackers from 1971! I found them a while back and listed them on eBay, but the listing got pulled because they are a recalled toy – apparently kids were banging themselves up pretty good with them back in the day!
