In my Second Life Garden that is.
The sculpties on the left and right were made with Rokuro which can only do sculpties based on solids of revolution and the middle one is my first Blender made sculptie. What are these shapes? Who knows. The Rokuro ones are maybe fungi or stone Japanese lanterns. The Blender one, perhaps a vertebra.
I recommend Rokuro to get a feel for sculpties since it takes only a couple minutes to learn, before you tackle making sculpties with more sophisticated programs. Nothing like that first success.