This is an all wood Truncated Tetrahedron, one of the 13 “Archimedes Solids” in polyhedra study.

It’s basically a regular tetrahedron with the 4 tips clipped off evenly so that 4 large hexagons and 4 smaller triangles remain (18 pieces of wood total). I can make these in a cherry (red) walnut (brown) ebony (black) wood stain, or just a clear polyurethane coat (as shown). 9″ or 12″ height.

For the complete polyhedron model index, please see my website.