I regularly check out the RSS feed from ehow.com and recently they featured and article on using book protectors to color a florcent light, I edited the page adding in a tip of if your willing to spend money go to a theatrical supply shop and purchase gels made for this purpose. After that a series of edits by other people followed up with more on this. Seems there are a lot of LDs out wandering the web, and I never though I would run into any outside of this forum.
The article:
http://www.wikihow.com/Add-Color-to-a-Fluorescent-Light
The article:
http://www.wikihow.com/Add-Color-to-a-Fluorescent-Light