I was at my neighbors house yesterday and he has chickens also, he has styrofoam balls like the kind you would use for decoration hanging on strings around his coop. I asked him what they were for and he said the chickens peck at them an he uses them to keep them from getting bored and pecking each other. He said it doesn't hurt them and has been using it for years, just baffled me it can't be good for them. What do y'all think have any of you used it?