Today I went down the path of importing 3D objects into Vuo for the Platonic Solids, it works great. I got a bit stuck as for some of them I needed more than one Transform 3D Object node (attached) if I wanted to rotate the X AND the Y for example. Doing X + Y in the same node wasn't giving me the expected results and I thought there was something wrong with the model!
I agree that creating the shapes in Sketch and getting the points coordinates is a good shout, giving that a go tomorrow.
Thanks for the time spent to give this some thought!