Say what? Yes, it’s evidently a new concept and quite a good idea for keeping feral cats safe and warm in winter. People rehabilitate old tires and create shelter for homeless cats. Here’s a picture of a kitty tire condo: https://www.facebook.com/permalink.php?story_fbid=1972841336076879&id=180016842026013
And if you really have a lot of old tires and time and you love rubber yard ornaments, you must check out this site. It shows 40 things you can do with tires—for example, make decorative birds, a horse and cart (no kidding), some adorable snails to welcome guests. Seeing is believing: https://www.icreativeideas.com/40-creative-diy-ideas-to-repurpose-old-tire-into-animal-shaped-garden-decor/
Here’s another method of protecting feral cats in winter using Rubbermaid storage bins https://alleycatadvocates.org/communitycat-care-center/creating-winter-shelters/