By the looks of it, with the 300 series types, if the cuffs are put on with the keyhole facing towards you, and not towards your hands, you can't actually get to the keyhole to pick it. I haven't tried it, cause i'm not game to do it by myself for fear of not being able to open it by myself, with or without the key.

And from what i've been told, handcuffs pass through customs, and never come out the other side. But from what i've gathered, as long as they're confined to my home for the mild side of 'recreational use' only, they'll be no problems.
