I recently decided I wanted to make a chinchou and voila here it is! I'm very happy with the outcome! The antenna/light things have wire in them so they are poseble.
I believe he is about 5 inches long, maybe even longer, and about 10 inches around if not more. He spans across both of my palms when I hold him. I would say size wise, it's comparable to the pokemon plush you would buy at retail stores.