I exported the hand from Poser as an OBJ file, then imported it into Blender
, a free and open source 3D modeling program. In Blender, I modeled a simple bowl by using basic Boolean operations between three spheres.
I positioned the bowl above the hand and connected the two by extruding a segmented stalk from the wrist, which I then manually posed before using the "Smooth Vertex" to achieve a smooth, flowing path between the parts.
I also used Blender to make sure that all of the fingertips were level, by slicing them all off with along the same plane. Nothing's more annoying than wobbly furniture.
Note again that I had to carefully consider how I planned to slice this up in the next step. For example, if the connecting stalk protruded too far to the rear, then it would become structurally weak as fewer radial slices of the model would reach all the way out to its extremities. Remember: if you're using radial slice of wood then the further from the center you go, the flimsier your structure will become.
Once I had everything positioned and joined, I exported the model as a single STL file.