I have the MTH Metra bilevel silver passenger cars. The one thing i dont like is that it is smooth sided; when it should be fluted. So I was looking at my 3D laser printer and I said to it ( I talk to it all the time) why cant I print the flutes, paint them and apply them to the cars.
I would need to remove the Metra Signs or remake one. This is just an idea at this point.