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But i dont see why have all the stems on them then.. they serve no purpose during flight or for Any type crash landing. and made from brass, they would not hold their shape after crashing into stone.

How about being used as pitch balls. You stuff them with cotton dip in oil or pitch, load large quantities of these in catapults, light on Fire and let fly.

Future generations will find our Rubiks Cubes and ask the exact same questions.

Pretty obviously used for holding various cords together at exact angles (hence the spheres to prevent slipping) without the use of knots

I notice that the balls on the icosahedra are different size, while it's the holes on the dodecahedra which are different size. I'm wondering if some sort of puzzle might be possible where you interlock some pieces around another, having to get the right sized hole to the right sized ball.

I don't know off the top of my head if the geometry works for that. However, the icosahedron and dodecahedron are "duals" of each other. If you connect all of the center points from the faces of either polyhedron, you'll get the other polyhedron nestled inside it.

That means there should be several different possible ways the two could fit together.

Also, I'm curious if the icosahedron is solid, as there should be many more surviving examples of that shape if solid. However, the opposite is true if the shape is hollow, given the odd sized balls at the vertexes.

aHEMagain