Meshagon of the Low Poly Rhino.
I really liked the "low poly rhino" so I turned it into a Meshagon, which is a fully manifold (water-tight) finite element tetrahedral mesh structure.
This is the high-resolution version about 900K faces.
Enjoy and email me at tcd@tcdoe.com if you'd like an STL file.
original surface model by: by YahooJAPAN on thingiverse.
updated (decimated) by: reddit.com/user/TheTurtleVirus