Pop art for your hand pipe.n n n nM. Slinger is a professional glassblower from Philadelphia, PA. He has taught glassblowing skills in the U.S., Canada, and Japan. In 2012, M. Slinger released his first feature length film, “Degenerate Art,” a documentary on U.S. glass pipe-making as a form of folk art and political advocacy. This Campbell’s Soup Hammer Style Hand Pipe is a great addition to any glass aficionado’s collection with its classic Campell’s Soup pop art motif. Sandblasted black and with the Slinger moniker on the underside of the piece, this hammer style pipe is both portable and packed with a deep bowl so that you can make the most of your dry herbs.