MikMo:
If you get the baloon to lift the fiber, you need some kind of diffuser for the tiny little dot of light coming out of the fiber
Good point, this might be an issue, it might not.
I'm going to start small and scale up. I have these 3watt rgb leds hooked up to a constant current source circuit that is connected to a tlc5940 > arduino that I have been using but not sure what the best way to couple it. Right now I have pen shaft glued to the led to channel in side emitting fiber optic but i'm not sure how it will work with the smaller diameter jacketed fiber.