Someone asked "Why not a ring instead?" and someone mentioned they had the imbed done by a tattoo shop full of people with piercings, etc. So my thought was co

Someone asked "Why not a ring instead?" and someone mentioned they had the imbed done by a tattoo shop full of people with piercings, etc. So my thought was combine the two into an RFID nose ring or something. But the downside is you'd have people swiping various body parts in checkout lines. "It didn't go, try again. Wait, please don't try again."