Tips for Floofs that eat inedible things?

Jäger (9mo M) thinks he can eat anything. I had a previous Berner who grew out of it, but responded well to being disciplined. Jäger on the other hand is quite stubborn and playful so "spit that out" turns into a game.

What are some things to discourage eating inedible objects?

Jäger (9mo M) thinks he can eat anything. I had a previous Berner who grew out of it, but responded well to being disciplined. Jäger on the other hand is quite stubborn and playful so "spit that out" turns into a game.

What are some things to discourage eating inedible objects?