A few years ago, I saw an item in a store somewhere that I thought was very cool for Christmas decorating. It is a colored lens in the shape of something like say a Christmas tree. You attach the lens to the front of a flood light and you can cast the image on something flat like the side of your house. Add a few of them together and you make an entire scene! I thought this was a neat idea but I have looked around this year and I haven't seen any. Does anybody know who makes these or where I can find them? Your help is greatly appreciated. Merry Christmas!