I have a few American Flyer Passenger car Window Silhouettes ( That I think are better then Lionels) that I would like to copy on my office copy machine onto the frosted plastic that these originals came on so I can have extras and use them in various Lionel cars. Does anyone know where to by 8 1/2" by 11" Plastic frosted sheets or what the material is actually called and where I may be able to get them from?