Travelcard (RFID) ring

Digital Designer Dhani Sutanto has hacked into London's Oyster travelcard and transformed it into a wearable ring. 

The hack involves submerging the card into acetone in order  to remove the chip and antenna. Once removed, the chip and antenna are embedded in a resin ring. 

Source: fashioningtech.comAdded: 13 August 2012