Well, whether you do or not, this is what I ended up doing with it.
I love the look of old typewriter keys, so after finding pics of the ones I wanted, I got busy. After cleaning the heck out of the window to make sure I got as much grime & such off as possible, I set to ModPodging! It took a few coats to get everything smoothed out and even looking, but now that it's all done, I can't decide where I want to put it!
Yes, I love ModPodge.