Lest you think that wearables are all ‘blokes’ stuff and not very attractive, there is this;
http://www.nfcworld.com/2014/12/15/333225/jeweller-debuts-nfc-pearls/
US jeweller Galatea has unveiled Momento Pearl, a cultured pearl that contains an NFC chip
Its a ring with a chip in it.
They have plans to release more in the near future.