While we were in Wales we visited Machynlleth market, where we saw signs painted on to slate on sale for £5. Hubby leaned over to me and suggested that it was something anybody could do. I thought I'd give it a go. My sister-in-law had a pile of slate outside her house in Wales, its the stone from part of the house that they were demolishing, and she planned to use it for a dry-stone wall along the edge of the garden, but she let me pinch a couple of pieces for my creative endeavours. I used plastikote enamel paint (we had some sitting down in a box in the cellar). I painted the main colour first, two coats, and then painted around the edge in black. They're imperfect, the same as most things that I make, but I think they add something to our garden.