Hi,
today I want to present just a mini-series.
It presents a dodecahedron, the 3x3x3 it could be made from and two "midsteps".
Funny for me was, that I didn't build a puzzle for this picture. All were already there. This is a sign but for what?

Andreas

Alternatively, you could truncate the other four (pointy) corners of the rhombic prism first.