My MIL took stained glass paint and painted her daughters windows to look like stained glass, they were really neat, but a little bit annoying because you had to open the window to see out, but there in the city where your neighbor is 10 ft away you don't want to look out.
When I was a teacher I took a "stained glass" window art set (about $8) and made all kinds of window art for the windows in my class room. Like when we were going through the days of creation I made different scenes for each day, it made a great visual reminder for the kids! Plus they peel right off so when we moved on to another subject I could store them somewhere else and put new ones up.
During the winter when I was a teen and really into beading I would make fish and a fish scene out of beads, then place a couple drops of hot candle wax on the back and then stick them to the window. All winter long they stayed up and then in the summer the came off with almost no mess.
