What about substituting the 10mm RGB LED with a high-power 1W (or so) RGB LED? I know that a 3-channel power LED driver circuitry between the 1W star RGB LED and the main controller (Arduino) is ...

As you might expect, there’s an Arduino and some RGB LED strips involved. But the key to this build is in the 16 pieces of side-glow plastic fiber optic tubing.

By contrast, the hardware part of this build is fairly simple: all that’s needed to replicate this build is some RGB LEDs a beefy power supply to drive them, an accelerometer, and a microcontroller.