This course begins with the basics of silicone mold making and moves quickly into the fabrication of hanging/hollow core refractory molds. Advanced projects will include interlocking refractory molds used to cast a hollow form within a larger glass object. Students will learn silicone mold making, wax-working, glass-casting, refractory mixes, and some cold-working. They will walk away with silicone molds and cast glass objects.