How to make shower curtain and window treatment for a small bathroom?

I have made them out of bed sheets before, just opening the hem for the curtain rod. Honestly, with the price of material being so high I have given up on making curtains most of the time because I can purchase them ready made for less than I can buy the material.

However, making them is as simple as measuring the area then cutting your material to allow for a hem at the bottom and top. Decide if you want a simple pocket at the top or something that has a ruffle effect above the rod. You hem the bottom a 1/2", add curtain weights if you feel they are needed (I usually do unless cafe style), then hem the top based on your rod size. If you want the ruffle effect at the top, add the hem a suitable distance from the top that will provide the ruffle -I've done anywhere from 1/4" to 2". Hem the sides minimally. That it for a simple curtain.

Purchase a second shower curtain and make your own. Or use coordinating fabric, scrap fabric or sheet. Do you sew?

Kathy has given you good advice! You could possibly purchase two identical shower curtains and make your window curtain from part of the fabric of the second shower curtain. I made my own shower curtain from 60" wide fabric and placed the rod at ceiling level. I've received many compliments on it as it draws the eye up and away from the tub/shower and adds a bit of sophistication to the small bathroom.

https://www.jennaburger.com/2012/03/how-to-make-any-curtain-into-a-shower-curtain/

I have seen that done with Ikea curtains. They come 2 in a package and look great.

Here are some ideas

https://www.youtube.com/watch?v=kyh3r2pzLFc

https://www.youtube.com/watch?v=n6yGgKhgG9s

https://www.youtube.com/watch?v=0eMBufvPi04

I've made curtains for my small bathroom, very easy. https://www.exquisitelyunremarkable.com/2017/05/cheap-and-easy-curtain-ideas.html

Hello I have seen some buy an additional shower curtain and transform that into custom matching curtains. Hope this helps.

Maybe buy an additional curtain to hang outside the existing one?