Free 3D printed Bitcoin seed storage at thingsverse Check it out. Binary and seed index.

Bitcoin wallet designed to store up to 24 or 12 words, each generated according to the BIP39 standard. You can find the index of each word in the official Bitcoin repository on GitHub. This wallet is perfect for airport travel, and because it is made with 3D printing, it won't be detected by metal detectors. It's easy to carry in your wallet as it has the same size as a credit card. The holes should be made with a nail or some kind of piercing metal tool; a hammer can be used, but any heavy object that won’t break will work.

https://www.thingiverse.com/thing:6811420
https://www.thingiverse.com/thing:6811428