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 Marbles were originally made by hand.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
Elgin Marbles an increased interest in classical Greece, and in June 1816, after parliamentary hearings, the House of Commons offered £35,000 in exchange for the sculptures. Even at the time the acquisition inspired much debate, although it was supported by "many persuasive calls" for the purchase. Lord Byron strongly objected to the removal of the marbles from Greece, denouncing Elgin as a vandal. His point of view about the removal of the Marbles from Athens is also mentioned in his narrative poem "Childe Harold's Pilgrimage", published in 1812, which itself was largely inspired by Byron's travels around the Mediterranean and the Aegean