Glassblowing is the art of shaping molten glass into a vessel by blowing air into it through a tube. Its processes have remained essentially the same since ancient times. Glass materials are fused at high temperatures, boiled down, skimmed, cooled several hundred degrees, and then blown. The manufacture of simple glass objects, like light bulbs, is now done by machines, but ornamental objects are still made using traditional methods. One key glassblowing tool is a “punty.” What is it used for? Discuss