The Pipas Camaleon Pollack glass pipe is an important American Expressionist. While a completely different technique is required for glass, Pollack used volumes of paint combined with velocity and force to create a unique design for every single piece he produced. Same idea for the Pollack pipe you are about to buy: Pipas Camaleon super heat the colour rod to liquefaction and then use the pressure created by the torch in concert with varying degrees of back and forth whipping motion. Sold as assorted colours that may differ from images.