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
Marbles Reunited awareness about the reunification of the Parthenon Marbles. In 2005 the organization changed its name to Marbles Reunited to reflect the ongoing aspirations of the campaign, while not being tied to a specific date. The current executive committee members are: Other members of the organisation include: The original members of the Committee were: The members of Marbles Reunited have organised and/or had significant involvement in a large number of events throughout the United Kingdom and abroad. Marbles Reunited works closely with the British Committee for the Reunification of the Parthenon Marbles, another organisation that supports the return of the Parthenon