I have seen a lot of really done chinchilla tattoos of chinchillas themselves. At York last year Barb Shoots was running around to all of us with them trying to get us grouped up for a photo and they were all sorts of different styles, some in color, other black and white. Mine is a chinchilla but it isn't any specific one, so that it is in honor and memory of all of them.
I'm not a fan of the way chinchilla pawprint tattoos look, but that's just my own opinion. There are a couple I have seen that I liked but I think they need to be incorporated into a bigger design, rather than stand alone. And no Chinese symbols for me - although i do have friends who could make sure they were right!