I did paint ON glass once, this is oil on glass with a Harry Lauder branch and is in the gallery "in a frame" in Yellow Springs. My daughter has this fabu tree called a Harry Lauder tree in her front garden. The tree is named after a much beloved scottish entertainer who performed using its crooked branch as a cane. The shrub itself was discovered growing in an English hedgerow in the mid-1800s. In the Garden of Paghat the Ratgirl has some nice info on this very unusual tree. I called it transmutation because it is about art of changing and transforming your mental state.