Here is an old 40's style radio cabinet that would make a nice case for a period diorama.The back wall and 2 side walls could be fitted with mirrors .You could add lighting and even sound if you would like to.40's airplanes or cars would be the obvious choice here.I plan to put a 1/16th scale Ford Model A Tudor in this one just like the 1:1 I have sitting in my garage.

I have seen very nice half models of aircraft in flight where the half facing the viewer has all the interior detail while in the mirror you see the aircraft in flight.One of the radio knobs could be hooked up to a motor to turn the props and another for sound for the engines!All this contained in a dust free case.