Lighting the interior of a structure is not a problem. But any chance of adding exterior lighting -- like a porch light seems hopeless. Even the smallest bulbs are grossly out of scale. I've tried fiber optics, but because they don't "spread" light very well, they only seem to work in instances like a theater marque. Has anyone had any luck with adding relatively realistic exerior lighting in N? A wall light, billboard downlights, etc?