Hello,

I will give it a shot. 
My Grave of the Fireflies cel is probably rare 
as I have not seen another of the little girl.
Probably around somewheres but seems to elude me.
My favourite cel is this OP cel from Lodoss War 
TV.  Don't know if it's rare as I've seen many 
OP Deedlit cels from the same sequence but this 
is the only full body one I have seen as I look 
around at the Galleries on the web.

enjoy