3xM8: Voronoi Chess Set with inlets for 3 x M8 Nuts

Add even more heft to move the center of gravity even more toward the base by pressing three M8 nuts into the inlets at the base of the figures. Use some glue if the nuts sits not tight enough. Edit 2013-11-19: Uploaded all files again. Some of them had errors and some of them were not the right files at all... sorry!