I purchased it from a seller on Etsy and she has a TON of really cute patterns of material and she custom makes them to fit your phone. You can even tell her what type of case you have/will have on the phone and she will fit it to those measurements. She is very helpful. She receives very good reviews and she responded almost immediately to my questions. I can't seem to post links here for some reason, but I'd be happy to PM you her info if you'd like!
I do want to mention that I have not personally received products from her in the past, so I am going off her reviews, appearance of products, and her customer service thusfar.