George W. Hart - One of my favorite four-dimensional forms is the 120-cell. This baby-blue ball is based on the edges of a perspective transformation of the 120-cell. Its 720 pentagons are rounded to circles and ellipses to give it a softer character (and more engineering strength).
3d printed lampshade by studioluminaire.com 3D printing service - http://www.sunruy.com/
3d Printed Egg Stand by Melabot on Etsy, $3.00
The Shapeways of Japan, Rinkak Marketplace, Offering New Wood Material Option http://3dprint.com/61258/rinkak-new-wood-material/