I had an old storm window lying around that I spray painted with Rust-Oleum Frosted Glass.
I added LED strips to the back of the window. They have a sticky backing that adheres to the window.
I hung L brackets on the wall at the end of the hallway to hang the frame from.
Everyone that sees it thinks it's a real window. It brightens up the hall and makes me smile every time I walk by.
We found this (very heavy) metal lampshade at a flea market. I loved the patina & Hubs converted it to a fixture.
I now love my "new" (40 year old) hall and the one-of-a-kind light fixture that my brilliant Hubs helped me create.