My son is really into the small wooden trains, like the thomas the tank, or the Brio ones. I saw the MTA had some modeled after the NYC trains but they seemed a bit over priced and no detailed at all.
So I decided to make my own. There were modeled from several pictures, they are fully compatible with wood tracks and other trains that use magnets to connect. I was able to model a connector that uses a magnetic ball to connect to other trains, since the ball is loose within the container it can swivel around in any orientation and connect to all trains models in any orientation (Shown Above)