Here’s a couple stone walls using the same imprinted pattern for stones. The one on the left is a smaller wall, and more organic, suitable for a garden or to separate houses. The one on the right is intended to be a section of a building’s wall.
The one on the left is just plaster (actually dental plaster) cast from a clay mold I just whipped up. The one on the right has more effort behind it. First I made a two part mold out of sculpey clay, then baked the sculpey so I have a firm mold. I’ve made two casts from it so far and they came out really nice. The sculpey mold shows no signs yet of degrading. I used mold release on one cast but not the other and they seemed to work about the same well. I will be casting lots of these wall sections now, and will be using them to make larger buildings or even castle walls.