...and no, it wasn't time lapse. My buddy and I were pretty shocked how cool it looked. There's minor details, like how it was bouncing around the curve and off the bolts, that aren't apparent in the video. Since then, we've tried various colored LEDs on the end of the acrylic and it looks amazing. We're going to permanently install white LEDs as they had the best punch.
We thought about that actually and tried a couple of different colors. The plain ole' white LEDs really did look the best. Not to mention, we don't want to clash with the rest of the room, which is heavy on wood tones and blues.
A neutral white would go with just about anything so I guess in that sense white is your best option. Though its not like you couldn't use white as the default and have the ability to switch to a color. I think you would get a lot of reaction out of being able to splash it with color at will.