These NFC tag coins are perfect for a variety of purposes, including re-creating Amiibo coins for Nintendo devices using your smartphone. I used 25 mm (diameter) NFC215 chips.

• You can use these NFC tag coins along with resources like "The Complete Guide to Amiibo Bin Files" and "Link's Backup Amiibo Files" to create custom Amiibo coins for their Nintendo devices.
• These coins are not restricted to Amiibo use only. You can explore various other applications using NFC technology, such as with the NFC Tools app or Tasker.

The NFC tag coins can be purchased from online retailers such as AliExpress. The coins are a press-fit.