heres my custom N-Scale 2-0-2 dummy I made from a junker (it was destroyed by my little brother, it was missing a wheele so it had 5, and i took one off. so i tinkered with it and got this)
It's obviously an old steamer that has been converted to an electric drive. Notice the gears on the side. All it needs is a pantograph or shoe to pick up electricity from an overhead line or third rail.