Platonic Singularity

Uh, I don't know what else you call these. But it's basically a tetrahedron, inside a cube (hexahedron), inside an octahedron, inside a dodecahedron, inside an icosahedron. They're all connected via couples and rods at their faces/vertices/etc.
You should be able to 3d print these, theoretically. Probably not at very small scale. Also, this one is pretty condensed and might not be satisfying as a real-world object. I mostly drew this one up as a proof of concept.
To be perfectly honest, there's some discreet wobble in the alignment between the octahedron and the dodecahedron. I didn't quite know how to square up the two comprehensions, so I basically hand-built the outer layers according to what fit best. I will also upload the improved version of this model (Far Atlas).