Interesting. This reminds me a lot of the Coinkite company's stuff, they're the guys who make the legendary ColdCard hardware wallet and a ton of other super awesome Bitcoin stuff, I love them.

They have these things called Opendimes which are basically the exact same thing as these, more or less. I used to hand out these opendimes all the time to people years ago.

They've since been replaced by the even-cooler "SATSCARD" which you are NFC cards that you can re-use up to 10 times, it's basically a cash version of Bitcoin that you can hand along to people. Check out the satscard here, they have a boatload of cool stuff on their store, definitely one of my favorite bitcoin-related manufacturers out there who make all kinds of stuff. I love that you can get the Opendimes complete with a crazy power supply thing that uses a 9V battery so you can be sure there's no way anyone has fucked with any of your hardware or power supplies etc. You can operate fully off the grid with these guys.