an alternative drinking glass by jack wax October 16, 2015 a demonstration of how to rethink - and make a drinking glass...here made by blowing, cutting, mending and sealing.. three cuts in the blown bubble... - - is being sealed with pre-made clear glass rods and a torch after the glass is sealed and melted together, it is transferred from the blowing pipe to the punty - and opened up next day, after 10 hours annealing, the glass is ready to drink from (number 3 from left)