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
Elgin Marbles as Human Rights activists, lawyers, and the people of the arts, voiced their strong support for the return of the Elgin Marbles to Greece. American actor George Clooney voiced his support for the return by the United Kingdom and reunification of the Parthenon Marbles in Greece, during his promotional campaign for his 2014 film "The Monuments Men" which retells the story of Allied efforts to save important masterpieces of art and other culturally important items before their destruction by Hitler and the Nazis during World War II. His remarks regarding the Marbles reignited the debate in the United Kingdom about