This one won’t get chewed into little plastic/rubber bits.
Then again, if you own a disc golf course and have a dog, the concept of a dog disc is just plain wrong.
So when Ruby was a puppy, we got her all sorts of balls, which we threw all the time to her. I personally threw these various balls for Ruby to fetch until my shoulder started hurting. I switched to underhand, which aggravated my tendonitis.
So I got a lacrosse stick, and used that. Until Monica, an employee here, said her dad uses a tennis racquet. Man, did I feel stoopid for not thinking of that. I already had a tennis racquet. So we switched to hitting tennis balls with a tennis racquet, which so far is the best solution.