Add vinyl lettering to an old window - endless possibilities. (I'd actually print out what I want, put it behind the frame, and paint over the front, in a different font, it should be fine, and much easier - if you want it painted on the back, just reverse the image and try that -- lol some fonts might be quite a challenge that way!)
Through the Looking Glass. A vintage window makes a stylish substitute for a transom in the passageway between the entry hall and the living room. Old windows are easily found and can be used to add architecture where it might be missing, or even to serve as affordable art.