I bought a couple of Halloween table cloths at Dollar Tree. My thinking was that we could use them for our Halloween party. A few days later I found them in our bathroom (along with spider web all over our mirror). My wife turned the table cloths into shower curtains. She used safety pins to wrap the top of the table cloths around the curtain rod. This hack will also work for window curtains. You can pinned the table cloth around the window rod or on the existing curtains if you don’t want to take them down. So if you are looking for Halloween curtains, just buy a couple of cheap table cloths and pin them up. My wife is so clever.
Note: We don’t shower in the downstairs bathroom so I’m not sure how waterproof the table cloths are.