Instructables member Antibromide modded a “Vintage Edition” Monopoly set into an electrified steampunk version, wherein your pieces’ movement around the board trigger electrical effects in four props in the center. Brava!
I started with a special edition Monopoly board and added a Community Chest, a water tower (for the water company), a Ray Gun (for the Chance cards), a train (for the railroads), and street lights (for the electric company). I used reed switches and magnets for the triggers when you land on designated spots on the board.
Electrified Monopoly – Steampunk Inspired
(Thanks, Yehuda!)