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 Marbles were originally made by hand.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
Lose Your Marbles Lose Your Marbles Lose Your Marbles is a puzzle game developed and published by Segasoft and released for the PC on August 31, 1997. A version of the game was included in Microsoft Plus! 98. In Lose Your Marbles the player moves each color of marbles to create matches on the playing field while the game drops new ones every few seconds. Whether played against a human or the CPU, the goal in Lose Your Marbles is to force the other player's board full of marbles. Creating matches of three, four, or five marbles clears those marbles from the player's