who knew?
Lego Stained Glass Flickr Group
Yes, that is a Flickr group of people making 'stained glass windows' out of transparent Legos.
One of the more interesting ones -
"Creation, Day Four: The Sun & The Moon" Lego Mosaic
More interesting than most seeing that it is based on an existing window, by Aidan MacRae Thompson -
Sun & Moon, from a sequence of six small windows Aidan designed and made for a church in England in the late 1990's.