I make each blue feather from fused scrap glass. This particular one features gold dichroic glass sprinkled into the top and then the glass transitions into a mottled denim blue. Transparent 3-dimensional glass is always tough to photograph well, but if you like it in the photo, truly, it looks even neater (and isn’t quite as dark as the photo would have you believe) in person.
Please don’t use a suction cup to hang suncatchers of any sort in your window; they will detach when the weather changes and then the suncatcher will hit the ground. A ribbon over the curtain rod or a small hook in the window header will work much better.