Easy stepping stone form?
What's the easiest thing to use for a stepping stone form? I'm not particular about the shape although I would like something at least 12". I would like to buy something cheap to use and not have to make one (unless it's cheap and ultra easy). I've never tried this before and don't want to waste a lot of money. Do you have to have multiple forms because you have to make a batch of hypertufa at a time?