Pedagoguery Software is now selling die-cast aluminum models of geometric figures as well as software. I bought a set of these, and they are very satisfying. Each polyhedron is smaller than a golf ball, but perfectly cast, and quite heavy.
Pedagoguery's software is cool, too. I used Poly as a visual entertainment before a talk I gave at Lotusphere '99, and I got as many questions about the nifty polyhedron software as I did about the topic I was presenting.
By the way: the lab cam capture on the Lotusphere '99 page includes me, Pete Lyons and Julie Kadashevich making faces at the camera: