[Maximo]

I would remove the toys when you cannot supervise your dogs with them. Leave only the ones that they do not chew up. If that means removing all of the toys, then that is what is necessary.

There are many stories of dogs being able to pass incredible things through their systems. YT has a very funny thread about members' experience.

At the same time, there are many tragic stories of emergency surgery and death because of ingested toy parts. Choking is the first hazard, punctured stomach or intestines another, intestinal blockages, and so on. I saw on Animal Planet a story of a large dog who ingested part of his favorite rubber ball. The ball sat in his stomach and caused a cancerous tumor to grow.

Best policy is to supervise your dogs with toys and remove toys at the first sign of damage. If the dogs can't be trusted with the toys alone, put the toys away when you aren't there.