This is the sculpt as it appears in ZBrush - 1.7 million polygons. Knowing I'd be 3D printing an altered version I didn't take the level of detail very high. As you can see there are lot of things that are still pretty rough, especially the hands and feet. But they will all but disappear in the printed form:
It's generated acceptably, no naked or manifold edges... but I did not particularly like the surface. I wanted something which would appear more obviously geometric in the detail between the voids (printing the above would just look smooth). I used ZBrush's Decimation Master to reduce this to mesh to 20K polygons. This added an interesting geometric tessellation to the surface while maintaining the overall Voronoi effect:
Here's the overall resulting form.
Details showing the mesh edges:
Once again I had it printed at Shapeways in their Strong and Flexible Plastic. It took 6 days from order to arrival at my house. The bounding box was scaled for printing at 11" high, 6" wide and 4" deep.