I don't see the need for another mouse hack thread, so I thought I'd put this in with this one. Not trying to thread jack, and staying somewhat on topic. Louis, if you want me to remove this I have no problem doing so.
Built a "prototype" for the optical mouse spinner. Pretty straight forward. Some small planks of wood, genuine arcade cabinet brackets, a long bolt, nuts, washers, small plastic cup, and an optical mouse with the top cover removed.
Here you can see the clearance between the plastic cup and the mouse.
A quick video of the optical mouse spinner in use.