Workshop 3 Hour Glassblowing Class GIFT CERTIFICATEGift the experience of learning how to work with molten glass in our 3 hour glassblowing class. Students choose from a wide variety of color mixes to create your unique artwork! Please arrive 10 15 minutes prior to your class time. Valid toward ANY 3 hour glassblowing class with a value of $250 ONLY VALID in "Workshop 3 hour Glassblowing Class " class listings. All glass pieces need overnight annealing (a cooling process) and will be ready for pick up