I’m dog sitting a few times a week (same dog), and he loves chewing up cardboard. He doesn’t eat it or anything, just makes a huge mess. He has nylabones and similar chew toys, but he’s not very interested in them. He seems to prefer things he can rip to shreds easily. Any idea what sorts of toys would be a good alternative to cardboard for him to reduce the mess?
Buy something with feathers. It’s an old hunting instinct to rip and tear things apart. Probably loves birds and the feeling of loose things like feathers in its mouth.
Or, ignore the cardboard completely and look into a snuffle mat. Keep that nose busy sniffing.