These bird roundels are made of recycled wine bottles that I cast in the kiln on molds that I made myself. They come in champagne green, cobalt blue, clear, yellow, and “olive” (not really yellow, not really green, not really brown).
The edges can be finished, which means they are “fire polished” in the kiln to make them smooth and shiny, or they can be unfinished, which means I have either left them they way they come out of the kiln if they are more or less circular, or I have used my glass grinder to remove any excess glass to create the final shape. Finished edges would be appropriate if you are displaying the roundel (you can request one with a hole and a ribbon to hang it by), while unfinished edges are better if you are a stained glass crafter wanting to include this piece in one of your own creations.
The bird roundel measures approximately 4 inches in diameter and is about one quarter inch thick. If you are going to use this in a stained glass piece with lead came be sure to use “high heart” lead to accommodate the thickness of the glass.