At the Whitinger Farm, we are busy making stepping stones for a walkway between our driveway and the house. It's an ambitious project and we've already made dozens of stones. By popular request, here is the tutorial on how we're making them.
As I was reading this thread it reminded me how much fun I had making a couple of them years ago. It also made me think of wanting small stepping stones to put in my flowerbeds. Ones that are only 6 or 7 inches across so I can step on them instead of packing the soil down in my flowerbeds. Your instructions and seeing the pretty stepping stones has decided me that that is going to be one of my summer projects.