The Dodecahedron
It's a perfect five inch Dodecahedron.
Walls are roughly .1" thick.
About 140g when printed in PLA at 15% infill.
Designed to fit the largest official U.S. Dollar coin I could find (1.5".)
Part of a series of platonic solid inspired piggy banks I'm working on.
This one is much less elegantly designed than the others. that does not bode well for The Icosahedron.