Sydney man has Opal card implanted into hand to make catching public transport easier — ABC News — “Bio-hacker Meow-Ludo Disco Gamma Meow-Meow, his legal name, had the Opal near-field communication (NFC) chip cut down and encased in bio-compatible plastic, measuring 1 millimetre by 6 millimetres. He then had the device implanted just beneath the skin on the side of his left hand. “It gives me an ability that not everyone else has, so if someone stole my wallet I could still get home,” he said.”