Hi, thanks for visiting the site and taking a moment to look at my work. I 'engrave' on glass by hand, using a drill. Think of the drill as my brush and the glass as the canvas. This is quite different to the traditional method of 'etching' using chemicals, or sandblasting, which most people are familiar with. And, as it is all by hand, no two pieces are exactly the same. For more about this and other news click on my blog. Thanks again. Akoko.