Tomorrow we are making more new tufa troughs for the garden. Not really tufa, but rather some sort of concrete aggregate mix. I have not made them before but have seen many articles about making them. They said they would be quite large. Not sure how they will move them from the lady's home to the botanical garden but happily I won't be involved with that. It will be nice to be involved in actually making them though. Then maybe I can make a couple of my own.