Well I guess you can toss out those business cards now.
Not kidding, the newest trend in the manicure world is to get NFC manicures.
NFC, which stands for “near-field communication,” is an ultra-tiny tech chip that plays off the signals on your phone and can trigger a variety of responses.
— https://nypost.com/2024/09/16/lifestyle/your-nails-can-now-act-as-a-qr-code-in-latest-manicure-trend/
The microchip goes on your nail like a decal sticker, and can even be reused, and link to any website. Looks like I know what Chappell Roan is doing with her nails next!