I have a scenario for Iron Kingdoms that takes place in a Temple of Cyriss, the Maiden of the Gears, in this case inside of the gears of a Great Machine. #4 has templates for large and small gears, combined with World Works I have the basis for a moving model, mounting the gears on foamcore, and securing them to a base board (also foamcore) with paper fasteners. Every round move the starting gear one tooth, and the rest of the temple will move like, well, clockwork.
I have no idea whether I will ever use it, I ran the scenario over a year ago, but the project is tempting in its own right.
The Auld Grump, and Handcannon 7 has naval rules for WARMACHINE...
*EDIT* Perhaps Return to the Great Machine? Son of the Great Machne?.... I have it! Revenge of the Great Machine!...
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Then again, maybe not.
*EDIT 2* Fixed issue number.