The spayed dogs that I had weren’t big on toys until they came out of season. Then, they each had one toy from which they were inseparable., until it was “weaned.” It wasn’t a phenomenon I was familiar with. They slept curled up with it, took it on rides and walks. Then one day, nothing. One time it was deemed weaned when Mia chewed them end off of it.
Make that unspayed.