Mini Octahedral Radar Reflector (Radar Target Enhancer)

This is a tiny version of https://www.thingiverse.com/thing:3053915.

A reflector consists of 12 leaves having the same edge length, while 4 cm, 5 cm, and 6 cm are available, 2 center caps, and 6 leaf caps.

Caps are not fixable with screws due to small sizes, hence they need to be glued.