This video is the best one I have found for etching on glass. You use the Cricut to cut vinyl to use as a stencil and then use glass etching cream. If you look at the comments, she recommends not using PYREX bakeware. I didn't see that until after I tried it. I left the cream on for 60 seconds as per instructions. I didn't think it had done anything so I put cream back on for another 2 minutes and it worked fine! I did several pieces and was able to etch the PYREX in three minutes. Hope everyone on my Christmas list like etched glass!