NFC Tag Keychain

NFC tag keychain, It fits a [25mm NFC Tag Coin](https://www.amazon.com/gp/product/B087M9FLM4). I've only tried printing with supports, its a PITA to get out but it still turned out pretty nice. One side has the logo and the other side is blank. The coin loosely fits in the slot but once you put a key ring through the hole it will not come out. My coin is about 1mm thick and there is a little rattle so if that bugs you, you can add something to the coin or close the gap but then it will be really hard to get the supports out if you make it smaller.