Another way to put NFC tags on your hand is to laminate one into your nail polish! We pulled this small tag out of one of the leather fobs in the store, and trimmed the plastic close to the antenna until the layers peeled apart, then removed any stick residue with rubbing alcohol.
Curve the antenna coil over a round object like a ring mandrel. The tag should fit snugly to the curve of your nail without springing up away from it.
