Clackers
Clackers (also known as Clankers, Ker-Bangers, latto-latto in the Philippines and most of Southeast Asia, and numerous other names) are toys that were popular in the late 1960s and early 1970s. The toy is composed of two solid balls of polymer, each about 2 inches (5 cm) in diameter, attached to a finger tab with a sturdy string; the user holds the tab with the balls hanging below.