The word ‘clockwork’ is often used to describe mechanical or windup toys, however most windup toys were powered by keys and cranks that activated small springs, which turned tinplate gears (hidden in the base of the toy), when released.  Companies like Mattel, Fisher Price, Ideal Toys, and Marx developed windup designs in plastics and other synthetic materials to compete with the international toy  importer Tomy.  As preschool toy trends evolved, the roly poly chime toys, music box pull toys and windup design toys reflected new childhood favorites, from Mr. Roger’s Neighborhood Musical Toy Trolley, to the Disney and Warner Brothers characters.  Toy radios, record players, Ferris wheels and a happy apple were all incredibly engaging and educational as young children practiced their singing, speaking, motor, social and emotional skills through play with music.