Marble (toy) Required" and "The Colbert Report". Currently, the world's largest manufacturer of playing marbles is Vacor de Mexico. The company makes 90 percent of the world’s marbles. Over 12 million are produced daily. Marbles are also made in China and may contain lead, arsenic, and/or cadmium due to the manufacturing process of old glass. Art marbles are high-quality collectible marbles arising out of the art glass movement. They are sometimes referred to as contemporary glass marbles to differentiate them from collectible antique marbles, and are spherical works of art glass. Collectible contemporary marbles are made mostly in the United States by
American Specialty Toy Retailing Association to be observed on the second Saturday of each November. American Specialty Toy Retailing Association The American Specialty Toy Retailing Association, or "ASTRA", is an organization of manufacturers, manufacturers representatives, distributors and retailers of specialty toys (as compared to mass market product). The American Specialty Toy Retailing Association (ASTRA) is a non-profit association that provides leadership and resources to grow the specialty toy industry. It is the largest association serving the specialty toy industry. ASTRA members build their businesses around specialty toys, which generally are designed with a focus on what the child can do, rather than what the toy