This set of 15 seamless textures is based on the Art Glass that Tiffany popularized at the turn of the last century. If you have my Stained Glass for SL book, you know how to use this.
At the moment, the license will only get you usage within SL; but if you love them, contact me if you want to use them somewhere else, and I'll see what we can do.
They are available now from TRU (search for 'glass') and at the Texture Library at Livingtree (105,90,20). L$350 for the set of 15 seamless textures. Come check them out!