OP, you should post a video of the effect.
I will when I get home. I finished the project thanks to you guys in the nick of time!
Lance
Here you guys go!
The video didn't come out the best but the hint is there.
Picture of the plexi https://docs.google.com/file/d/0Bx_sFejXsULPczZRYzRyMUd1bTg/edit?usp=sharing
Picture of the LED holder https://docs.google.com/file/d/0Bx_sFejXsULPMW5YMXdtWW9tLWs/edit?usp=sharing
Picture of the board https://docs.google.com/file/d/0Bx_sFejXsULPMWljTTdEU2wyRHc/edit?usp=sharing