Of course there are many polyhedra that aren't one of the five Platonic solids that we just posted about. For example, prisms. Here is a hexagonal prism made out of a folded hinged net:
STL file: http://www.geekhaus.com/makerhome/day85_hexagonalprism.stl
Tinkercad link: https://tinkercad.com/things/0sl3FylfUsi-hinged-hexagonal-prism
Thingiverse link: http://www.thingiverse.com/thing:185859
Settings: Low/.3mm MakerWare settings on a Replicator 2 in an hour and 25 minutes.
Technical notes: In order to get the hexagons to fit correctly I had to make them larger than one would expect. I guess a lot of space gets eaten up with the hinges and angles somehow.