I got tired of overpriced seed phrase backups, so I made a simple steel washer kit

I’ve been deep down the rabbit hole on seed phrase storage and kept running into the same problem: most metal backup options are either overpriced, overcomplicated, or use proprietary parts.
What made the most sense to me was the old-school steel washer method. It’s simple, durable, easy to verify by sight, and you can even split the washers into different locations if you want extra security.
So I ended up putting together my own kit built around that idea. It includes a 36pc stamp set, 52 washers, 2 bolts, 2 nuts, and I’ve even been including a free washer stamp jig to make the stamping process easier.
Main reason I like this method is it keeps things simple:
offline
no electronics
no dependence on one company
durable compared to paper
can be split up into different storage locations
I just got my first sale, which was pretty cool, and I’m trying to get this in front of more people who actually care about self-custody and long-term backup options. Would genuinely love feedback from people here on the concept, the method, or the listing itself.
Listing link:
https://ironseedkits.etsy.com/listing/4447763341