Here you can see the curtains we had up before in the bathroom. My sweet mother whipped them up for us in about 10 seconds (she's pretty much a sewing goddess: she can make anything out of anything in no time flat) from an extra shower curtain we had. They worked great for 2 years, but it was time for an update!
Roller shades from the hardware store. They will cut them for you for free, so make sure you measure before you go.
Some fabric-how much depends on how big of a strip at the bottom you want, and how big your windows are.
Step 1: Measure the width of your cut shade and add 1". That will be the length of your fabric. For the width, you're going to want to decide how thick of an embellishment you want. I wanted mine to be large, about 8", so you'll want to double that and add 1". So my width was 17". So, mine ended up being 17"x26". Cut one for each shade you're fancifying.
Step 5: All you have to do now is drill the little brackets in place. It's handy at this point to have a brawny man about, but it's easy enough that you can put your man pants on and do it yourself!
Hang it up and admire your work!