Multi-layer hollow polyhedron

This is a combination of several hollowed polyhedrons, which is quite a skilled work of art and math. The value lies on the fact that it's not put together piece by piece or layer by layer. Instead, it's manufactured in one piece without gap, which is a work of art master if carved by hand and almost impossible if manufactured by traditional machining technology. Now 3D-printing makes it easy! It will be a special, unique, identical and cool miniature for a geometry, science or art fan!