Thanks, Michael,

I did a dodecahedron after the icosahedron, so I figured that one out on my own after a quick Wikipedia lookup. It took a little bit longer, though.

I'm not really interested in just the finished shapes as from your last link, at least not right now when I am trying to learn how to use MoI, working with construction lines, setting coordinate, distance or angle constraints, and trying to think more in 3D. It might be useful knowing where to find them some day, though, so thanks for the link.

I have moved on from regular polyhedra to figuring out how to construct gems from cutting charts. That is a bit more difficult, but I think I am on the right track. First time I've done anything very trigonometrical since school, but MoI's construction lines are extremely helpful and powerful. So is rail revolve for quickly constructing cutting facets.

Seems I might get MoI for Christmas from my wife, so I can just keep going once my 30-day trial is over.