"The trolley effect ....is created with a combination of paint and vinyl, or with a printed all-vinyl kit ready to be applied. With modern materials, digital printed vinyl can even be applied over side and rear window areas, still allowing the passengers to see through them. Premium quality materials are used throughout." -Stan Mitts


http://www.trolleyillusions.com/worksamples.html

That is very cool. Be fun to watch the passengers try to get on board through the middle doors when the mh is a front entry
Jim