Dodecahedron in Sketchup

I've just started learning to use Google Sketchup. It's a much more user-friendly environment than 3D Studio Max, which I used to use years ago. It doesn't look as powerful though. I've modelled a dodecahedron so I can visualize what my final piece will be for the Hunt Museum. Here is a simple version:

Next step is to extrude the shapes, create the holes and apply an image map, if that's do-able...