https://www.digitaltrends.com/how-to/diy-nfc-coasters/ https://www.digitaltrends.com/how-to/diy-nfc-coasters/ This has some steps to use your phone to create t

https://www.digitaltrends.com/how-to/diy-nfc-coasters/ https://www.digitaltrends.com/how-to/diy-nfc-coasters/ This has some steps to use your phone to create the NFC Sticker.