I would use PVC pipe for a curtain rod, and make the curtains to fit just the window itself. If it is possible to use a tension rod you could do that. If it is a really big window how about a shower tension rod and paint it what ever color you want .
Yes. I got some for my house, put it in the kitchen window, in the bathroom window, and have had good luck with them. The kitchen window ones look like stained glass. Love them. The bathroom window ones look like the opaque glass. I live in the south...
I do it all of the time and it looks awesome particularly when you use the window treatment to glorify the bed. You can really play up your bedding and linens by creating a window treatment that coordinates with the bed treatments. You can add height...