I just got a rotating platform that I can use with an app on my iPhone named "Spin". I tell the app how long it takes for the platform to rotate, the direction of the rotation, and the result is what you see to the right. Perfect photographic mechanism for showing off the paper models that I build.
The paper model at the right is of the Lightkeeper's House at the Straightsmouth Lighthouse at the entrance to the Rockport MA Harbor. You can get a copy of this model and build it yourself at FiddlersGreen.