no matter your budget: Corded Paper Blinds - Cheap Window Covering!
I decided that I didn't want to use curtains on our bathroom window so I was trying to find an alternative. I looked at the window films that they sell and didn't like how expensive they were. DIY window film with contact paper!
My DIY Projects: Make a Fan Curtain by papers this should be easy to shrink down for a miniature window using paper