Marble (toy) conventions. Additionally, many glass artisans produce art marbles for the collectors' market only, with some selling for thousands of dollars. Marbles are made using many techniques. They can be categorized into two general types: hand-made and machine-made. Marbles were originally made by hand. Stone or ivory marbles can be fashioned by grinding. Clay, pottery, ceramic, or porcelain marbles can be made by rolling the material into a ball, and then letting dry, or firing, and then can be left natural, painted, or glazed. Clay marbles, also known as "crock marbles" or "commies" ("common"), are made of slightly porous clay, traditionally
Marbles Reunited Marbles Reunited Marbles Reunited: Friends of the British Committee for the Reunification of the Parthenon Marbles is a campaign group, governed by charter and funded by donations from members and supporters, which lobbies and raises awareness about the case for the return of the Parthenon (Elgin) marbles to Athens, Greece. The organization was set up in 2001 by Richard Allan, Liberal Democrats Member of Parliament for Sheffield Hallam and Archaeologist. Initially the campaign was called Parthenon 2004. The members of the committee hoped that the 2004 Olympic Games in Athens would act as a catalyst to renew interest and raise