Has anyone incorporated a model live steam stationary engine into their display? I am thinking a pretty nice factory or saw mill could be produced with an engine, such is available through PM Research.
http://www.pmmodelengines.com/...team/steam-engine-3/
I would run the engine to a line shaft that goes to a gear head motor. I would use the gear head motor to power the engine & the display, the model steam engine would just kinda be "along for the ride"
Powering this from DC, you could easily switch it on & off.
BUT, put an aquarium pump into the mix, you could make a pretty cool display-
Thought of this today while in my shop, just curious if anyone had already done it.