So, as I continue my attempts to develop passive income streams, I’ve rediscovered Shapeways and Ponoko.  These sites allow you to upload 2D and 3D designs for use in rapid prototyping and laser cutting machines.

So far, I’ve created two main items, a “turbine” ring in sizes 3, 6, 9, 12, and 15 and a “revolutionary rose” grille for computer case fans in sizes 80mm, 92mm, and 120mm.

I’ve got a few more designs bouncing around in my head, so I’m planning to get those out and then work on another passive income stream.