Spent an interesting afternoon with the alarming diamond cutter, slicing through bottles and bevelling the edges to make tumblers. Quite fun. I then tried the mitre and carborundum cutting wheels again to incise design marks round the resulting glasses. Didn't like the results as I'm not that keen on cut or textured glass anyway. But I did try a bit of calligraphy engraving round a small medicine bottle, with the rubric 'Drink Me'. Also difficult to control, but this is a technique I feel I could practice and would like to master.