Cheers Rick, but yeah I've seen that one too.
Kei's little animals do turn up in quite a few books, but that Tiger only seems to have been published in the Happy Paper Zoo book. Somewhere out there in Paperland there's a re-colour of it into a Jaguar too.
Kei has built life size versions of them ...
but he seems determined not to let me get my hands on them.
Perhaps he's scared my burnishing techniques will make them better than his?