You are thinking of skins to cover the reader. Here is the link. I ordered one for my Sony 900, I can't wait for it to arrive, I now have to find a good cover for it, seems that a lot of places aren't making them for the 900.
On that note, I don't know her age so you may want to consider getting her a cover to protect the reader.
I have been asking about which one is good to get a kid, as I am seriously planning on getting one for my grandson for Christmas.
http://www.decalgirl.com/