A few people are doing similar things - I wanted a ring or something like that for a while. But now I just use Apple Pay. http://metro.co.uk/2016/07/14/these-a

A few people are doing similar things - I wanted a ring or something like that for a while. But now I just use Apple Pay. http://metro.co.uk/2016/07/14/these-amazing-oyster-card-nails-actually-let-you-swipe-in-and-out-6006350/ http://metro.co.uk/2016/07/14/these-amazing-oyster-card-nail... http://uk.complex.com/sports/2012/07/pay-for-the-london-metro-with-this-illegal-diy-oyster-card-ring http://uk.complex.com/sports/2012/07/pay-for-the-london-metr...