This is the stuff. It is the bomb (www.darjit.com). Having never attempted any 3D work, and certainly having no experience with cement or concrete (oh, well I did spend a summer jiggling the side of pools with Steve the pool builder), means this is a gigundo learning curve for me. I made mushrooms some posionous some edible and all made out of darjit.
Others had very clear ideas of what they wanted and they created large animals and birdbaths, and even a butterfly chair. TFace made a water/splash sanctuary for me. She used our specially hand collected oh-so -long- ago shells and now it sits outside and she has returned to her college bike riding art school life. And me..well stuck in Fogland.