Find the best marble making lessons, classes, and instructors at HeyKiki and learn the art of marble making. Before the 1900's marbles were made by hand using clay. In 1902, a new invention came along that allowed for identical marbles to be made with glass instead of clay. This brought the game of marbles to a new level, spiking the the popuarity of the game between the 1920's and 30's. There were even tournaments! Today, marbles are made even faster with machinery that can melt tons of glass at once, mold it, and add beautiful colors and designs, although you also have the option of molding and designing marbles by hand with a torch too.