Pizza oven tile finish


I just finished the stucco work on my Mattone Cupola pizza oven. I really want to finish it with tile and am looking at square glass tiles (like this: Mattone Barile Photo Gallery - 1000's of Oven Pics! – BrickWood Ovens).

I’m having a difficult time finding them. Any suggestions on where to get them (online, of course, given the situation).