http://zqktlw5bf6oycxq6qod452xnvdfcqhfwliz54bkul736g6b454jrk2ad.onion/wiki/index.php?title=Physical_Interaction
However, since "novelty" non-governmental ID is not criminal in and of itself, blackmail is much less possible. There are a myriad of reasons someone might desire anonymous banking and mail delivery without them necessarily being guilty of any crime (again, jealous lover, dangerous job, etc).