I am pretty sure it was Jim Barrett who wrote an article I read about how to make realistic tunnel liners quickly out of aluminum foil and spray paint. In a nut shell crumple aluminum foil into a ball, uncrumple, spray with your choice of color (grey works nice) and voila....instant blasted rock tunnel wall. You can mount to a rigid surface or secure directly in place. Works like a charm and looks great. And oh so fast to make. So thanks Jim Barrett for this very effective and time saving tip. Big Rail.
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