Sesame Street Happy Meal Blocks

In 1998, McDonald's in Australia offered a set of 4 Sesame Street blocks with their Happy Meals. Each plastic block featured letters and numbers, and a removable lid topped by a Sesame Street character. The set included:
 * Oscar the Grouch, with his trashlid on his head, topping a pink block
 * Big Bird, waving from his nest, topping a purple block
 * Cookie Monster, with cookies, topping a yellow block
 * Elmo, waving, topping a green block