ONE of a kind CAST glass tile signed DSprague. I can add a pinback to this piece if you would like to wear it as a brooch. Just be sure to ask for it! This piece is melted Bullseye glass that I have made into a butterfly using one of my own custom made molds. The glass is heated in a kiln until it becomes fluid and fills the mold. Its a one of a kind with shimmery dichroic.