These half-size math models offer all the geometry at a fraction the price. 

Fine art at this size.	How are they made?

 

The Gyroid 1 3/8" cube - $72 Also at Shapeways
	Borromean Rings Seifert Surface 2" diameter - $72
Hypercube 2" diameter - $72 Also as jewelry, also at Shapeways
	The 120-Cell 2" diameter - $76 Also at Shapeways
The 24-Cell 1 1/2" width - $72
	Schwarz' D-Surface 1 3/4" diameter - $72 Also at Shapeways