PhD student Alireza Rezaeian designed a silver ring whose texture and shape is uniquely determined by the wearer's DNA profile. His article explains how data is mapped to physical form in a way that balances between legibility and aesthetics. Right image: bracelet-sized prototype.
Also see our other entries on data jewellery.
Source: Rezaeian, Alireza & Donovan, Jared (2014) Design of a tangible data visualization.