nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpq2hn2ksx6dm9dmchfme5zsmvyd6wj35ylje9pjvusgxkx9ultgdvsw8r6d3 I had this in an open tab that I meant to link to you but forgot, and here we are.

https://www.amazon.com/Muzzys-C20018-TR414-Chrome-Sleeve/dp/B00CXSVNH6

These look to include a metal sleeve that surrounds the valve stem. Maybe you could combine this with an anti-theft cap (so that it can't be easily removed)?