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 Marbles were originally made by hand.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
A Bag of Marbles he dislikes lessons and enjoys playing marbles with his friends. But in 1941 when Paris is occupied by the Nazis his childhood comes to an end. Never before having known what it means to be a Jew, Joseph is forced to wear a yellow star. Unwilling to wear a label announcing to the world he is different, he makes his first business transaction with Zérati, a friend from school; his yellow star exchanged for a bag of marbles. The racism which results from the occupation leaves only one possibility to Joseph and his brother Maurice: they must flee. Their father,