I'd never heared of Polydron before (see what a sheltered life I lead ?), so I took a look at their website. It seems a bit expensive, given that it is made of platics, but I suppose it a niche market. I might get a bucket for my daughter.

Hi.

It is used a lot in schools in the UK, I heard ...

Hi,

I'm fascinated by the Stewart Toroids, and guided by the library in Great
Stella I built this gyro expanded truncated cube with Polydron.

http://i1208.photobucket.com/albums/cc364/falmbeau/Zi6_0152-small.jpg

Larger image:
http://i1208.photobucket.com/albums/cc364/falmbeau/Zi6_0152.jpg

Best ...