Toddlers putting foreign objects in mouth

Jennifer • Boy mom 👦🏻🧑🏻‍🦲with three little 👼🏻👼🏻👼🏻

I’m freaking out and idk what to do. I’m usually with him but unfortunately I can’t trust anyone else to watch him. I let my husband give him a bath last night and he came out with a wad of paper in his mouth laughing. I asked my husband if he noticed anything and watched him the whole time and swears he did and nothing was around him. I need discourage this behavior and idk how to do so. I say no and it’s a game to him.