I stumbled across the below photo recently and was amused to see the West Elm shower curtain we bought last year being used as a window curtain. Why not?
It's a gorgeous 100% cotton shower curtain - why not use it as a window covering? At 40 bucks a pop, it's a pretty reasonable price.
I wouldn't repeat the same pattern by using this particular shower curtain on the windows in my house. However, West Elm has a few other beautiful cotton shower curtains which would work just as well for this purpose. They range from $40-$50.
A smattering of sunny options.