Hello! I have a Ledger Nano S, and wanted a case for it that would protect it, plus look cool in my EDC. I ended up making a few for my friends and they love them, so now I sell them on Etsy. The cases have a tough aluminum alloy exterior, and a custom sized insert with closed cell foam padding and a silicon o-ring to make them waterproof. Not for everyone, but it makes me feel like James Bond every time I open it 😎
https://etsy.me/2NjaGMW