Cooper is a beautiful, fun, good dog!  He gets along great with all 2 and 4 legged creatures he's met.  He is a puppy and has better manners than most puppies I've met, but he is a puppy.  Left on his own he will pick up various items and chew on them.  This includes paper, magazines, stuffed animals, pencils, hard plastic items.  I don't think he has a preference.  And let me define "left on his own", all animals here along with at least one adult nearby or more.

That said,  my house has many items left around that are interesting to Cooper, another house may not have so many.  Compared to other puppies he's a dream,  just needs a lot of activity!