We bought the kits at a craft store and did them last spring. We had the same problem with them not drying. So we had to give them as gifts when they were really still wet, and still in the plastic molds. They were still wet days later. I think that they eventually dried, and I did see them out in our families' houses later. I never asked about them, but I do know that none of them put the stepping stones outside, which I think is a good thing. We didn't have any problems with them breaking, but maybe that was because we waited so long to try to take them out of the molds? Maybe try to do one again, but decrease the amount of water?