My baby is the same way. Dolce gets into everything and anything. I mean she has eaten dirt, leaves, sticks, the stuffing of her stuffed animals, wood chips from when we redid our kitchen, plaster, dixie cups, toilet paper....u name it she's gotten it. I have even heard her playing with a screw and almost lost it...she thought i was crazy the way i was ranting and raving for her to "drop it". I have used that term since she was a puppy and she has somewhat gotten the idea of it means to stop what shes doing and drop what is ever in his mouth. U could try using this term or another when u catch him chewing on something he is not supposed to. This way if u see him playing with something u are afraid for him to eat, and u use this term, he will drop it out of his mouth. I know its frustrating because u are scared for their little tummies...but just watch what is on the floor and keep an eye on him. They are very curious and it seems EVERYTHING tastes good to them. With Dolce, it usually passes whateva it is she is eating, but I still worry...I would say just to watch him and make sure nothing toxic gets into him. Also if u suspect something is blocking his tummy, a vet visit would definitely be in order.
Hope this helped a little...take care!!