If you can get your hands on a "Lightolier" catalog, the older ones had a picture of some "fiber" that was done somewhere in Vegas. This particular installation cost millions in parts, and labor. It had thousands of fibers that turned all the colors of the rainbow. It was one of the most beautiful lighiting installations that I have ever seen. Don't quote me on which catalog it was....Lightolier is the one that I think it was in. Maybe someone out there knows for sure.
FYI: Just did a job where a specialty contractor ran fiberoptics to light up a swimming pool. I would say that this greatly reduces the safety issues that arise when you install pool lights (The actual light source is nowhere near the pool!)