NEW! Skull Bottle Bottom fusing mold. This sturdy ceramic mold is 4″ wide and 3/4″ tall, designed and made in our studio in Salt Lake City, Utah. Sized to perfectly fit a 750mL bottle bottom (and other sizes too). Just kiln wash and full fuse your glass right on the mold for a raised, detailed skull design. The fused discs can be used as ornaments, suncatchers, elements for other artwork, stained glass elements, windchime sails and many other things. Not for use in microwave kilns or Quickfire Kilns.