Penny Eats Everything

Penny turned  one year old last week. She is a really good dog and can be very well behaved, except, she eats everything. Anything that falls to the ground disappears immediately. There are the usual, napkins, paper towels and Kleenexes. She also eats any scrap of paper, or plastic.  We have removed from her mouth wine corks, bottle caps and Swifter dusters. (well she swallowed the Swifter duster and we had to bring it back up. ) In my sewing room she has swallowed straight pins and enough fabric to make a small quilt. Hubby thinks the colored poop is funny. We cannot let her run even in the backyard because 3 times now she has eaten something toxic and goes through a few hours of vomiting and diarrhea. We have cordoned off the rhubarb and we know she isn't eating the rhododendron or hydrangea.  I personally picked all the toadstool out of the front yard today.