I also have a titanium pocketknife (James Brand), carabiner, keyrings, pens, camera (fujifilm makes a few), and some beloved snow peak dishes. And the silly titanium iPhone. It’s such a great metal to make things to carry with.
Except maybe in some multitool keyring single piece doohickeys, but it’s not expected to cut anything beside the tape on your packaging.
I've been searching forever for decent keyrings. There's a few carabiners (though the titanium ones are hard to find there too, and usually covered in obnoxious branding). But keyrings especially seem to be an under-served market. There's either (1) the usual mass-produced, flimsy, cheap garbage, or (2) something tougher and more expensive, but covered in branding.
I've settled with (2) for now (though it's not even titanium), but it'd be nice to not have to look at a giant billboard every time I pull out my keys.
My super-scientific "is titanium" test involved trying to get a fridge magnet to stick to them. it won't, and a normal keyring will. Yes, that risks it being aluminum. Other reviews state they put one against their sanding machine and got white sparks which was an additional positive sign.
If you want to confidently get titanium, these: https://thejamesbrand.com/products/titanium-keyring
They also make the carabiner I mentioned: https://thejamesbrand.com/products/the-mehlville?variant=312...
And here's a beer bottle opener to complete your collection: https://thejamesbrand.com/products/the-tjb-bottle-opener-tit...