Yes Mike, Celcon Standard or Solar grade blocks or equivalent. I don't have any sketches yet, but basically its curved top bits and side trims for arched top windows/doorways. Maybe I'll buy a cheap cutter or two and see how I get on - it will mean improving the dust covers on the machine a bit too, as I can see this would generate A LOT of dust, and abrasive dust at that - that was always on the list of improvements to do anyway.