Wolfe calls his Assemblage process “seriously low-tech but effective.” He begins each mold by slicing up pieces of foam with thin box cutters or an old straight razor, then gluing the pieces together and carving out large chunks using a hot-foam wire cutter. The foam pieces are then coated with a mixture of plaster and silica and, once it's dried, the foam is removed and the mold heated to 1100 degrees before glass is blown into its cavity.