I instantly thought of something I'd seen here as something I'd like to do with it.
Here's a picture I snapped with my phone when we got it. (I forgot to take one before I started decorating it so this will have to do)
I found some cute floral lining at Michael's for less than 3 dollars and decided it would be perfect for the window. After washing the window, I cut squares to fit the panes and stuck them on.
Then I crocheted little squares and strung them on a string across the entire window. (Someone gave me a bunch of yarn for free!)
All that's left is to starch the squares so they lie flat, but I was too excited to wait until then to post this!