Spark Sessions are collaborations that lead to amazing creative alliances and truly inspired works. Frequently, we invite nonglass artists into the studio to discuss their design ideas, learn about the glassmaking process, and watch their designs come to life.   Spark sessions are free and typically consist of one or two consultations at PGC followed by a half- to full-day of studio time. Selected artists will be paired with established glass professionals that will facilitate the making process. Past projects have included making unique sculptural objects, a lens filter for a photographer, experimental castings, and functional design works.