Each blue feather is made from fused scrap glass. While each one I make is a little different, you probably won’t be able to tell if you receive the exact one in the photos or not. Color options include either opaque cobalt or a transparent blend of aquas and blues, so please make sure to pick one.
Please don’t use a suction cup to hang them in your window; A ribbon over the curtain rod or a small hook in the window header will work much better.