Some sort of plastic box, Playmobil mine cart wheels and handles, Sigma Six battery pack and LED
This was done to fill in the gaping hole left in the Indiana Jones toy line, but can be used in any number of toylines for various moving things from point A to point B functions. Including GI Joe. You can move BAT parts in it for instance.
The fuctionality of the wheels was sacrificed to get a working light when I made this. I am fairly certain that if I were to redo this now, I could probably achieve both functions.