Been thinking about metal plates. I had a house fire about 10 years ago. Been worried about somethingike that happening again.
Discussion
So get a metal plate lol and burry it haha
Ivdint like the metal plate because it's a metal plate that don't fold or hide easy I have a better solution for you
Get the rings like a screw and washer let me try and find a pic


Thanks!
The upside to washers is lower cost and presumably better opsec on acquisition. I grid going this route with s blockmit jig but it was sized without enough tolerance for my letter stamps which had some sized too large.
The downside is the work required if ever need to destroy them. Probably easier to just dispose in geographically disbursed way.
I find metal plates are easiest to work with and their flatness also more convenient to conceal.