Both of these images were created using Stella 4d: Polyhedron Navigator, which you can try for yourself, free, at http://www.software3d.com/Stella.php.
A Zonohedron with 4650 Faces, Featuring Thirty Hexadecagons
RobertLovesPi.net
Polyhedra, tessellations, and more.
RobertLovesPi.net 
One of these would make a fine addition to my dice collection…
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