COURTESY OF RETRO RENOVATION http://retrorenovation.com/2011/12/20/t ... mas-trees/

Thanks for the link. Here's another blast from the past. In 1971, I was a college student, and our student center would have a coffeehouse every few Saturdays. They only had one "floodlight" - the color-wheel floodlight from an aluminum Christmas tree that someone had salvaged from the trash. So you'd sit there listening to original acoustic music watching the singer-songwriter slowly change colors. It never occurred to anyone that they could take the color wheel off and just have a floodlight.