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 Marbles were originally made by hand.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
Jenna Marbles million views as of March 2018. She uploads a new video to her YouTube channel every Wednesday or Thursday. Her pseudonym "Jenna Marbles" comes from her mother's complaint that "Mourey," their legal surname, pulled up only Jenna's videos on Google. Jenna's mother was unemployed at the time that Jenna's first video went viral, and was concerned that their content might put off potential employers. The name "Marbles" comes from her dog "Mr. Marbles". , Marbles' YouTube channel had about 18.1 million subscribers and 2.6 billion video views. Marbles appeared as Eve in season 2 of "Epic Rap Battles of History",