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 Marbles were originally made by hand.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
Marble (toy) with each marble being one centimeter or slightly more, apart from each other. After this, each player throws another marble as far as possible from the line, perpendicularly. In this game, the player whose marble is farthest from the line of marbles gets the first chance to hit the marble's line and subsequent players who get to hit the line have their distance from the line in decreasing order. Any player who hits and displaces a marble in the line of marbles gets to take that and all marbles to the right of it. Usually, marbles in the line are