Of course, this is the basic way a glass blower (or a machine) creates a bong. There are plenty of other ways that glass blowers make their bongs unique and the centerpieces that they sometimes are. If your bong has those brilliant streaks of color, this is done by glass blowers melting chunks of colored glass or other pigments into the mix. Once these additives are melted, the glass blower can expand, stretch, and pull these flecks of color into different patterns, swirls, and lines.