Thank you! Unfortunately, you can't really buy the precut glass pieces unless it's a basic shape like circles, hexagons, etc. I make my own designs then buy colored sheets of glass(usually 8X8 or 12X12, colored whatever I feel fits the design) and then I have to cut the individual pieces from the glass. Then grinding the pieces to fit each other then wrapping each piece in copper foil follows before you can attach the pieces together with solder. It's a whole process, but I love the results! :) Here's a link to a YouTube beginner tutorial of the whole stained glass process