Jazzy won't chew on the rubber dog chews, nylabones, greenies, things like that.
I do give her rawhide sticks, flip chips, etc. and have had no problems.
We also give her bones stuffed with peanut butter.
I used to give her cow hooves, but I don't any more. More than once she broke a piece off {usually the "toe" end}, got it caught in her throat, and began vomitting until we could get it out. Those things scare me now.
My larger dog chewed the end off of her large Kong toy and ingested a great deal of that, I am afraid,as there were no little pieces on the floor.
And the vet who addressed our puppy classes last year said that she has frequently had dogs who ingest chunks of the Kongs –she recommended, by the way, that people use the blue Kongs, not red, as the blue show up better on X-rays.
I think ALL chewables can be dangerous, so you really just have to go with what your dog will accept, and watch them.
We don't leave her with anything to chew on in her kennel when we leave her at home.