These characters are made out of materials that would otherwise be thrown away. I'm not sure who the character in the second image is supposed to be, perhaps you recognize it? At one time there was a lion as well, but he met his demise a few years ago. I keep hoping the owners will create a new lion and add Dorothy and a scarecrow to the collection, but so far that hasn't happened.
These are located just a couple of miles from where I live. It's funny how I drive by them all the time and only this week thought to photograph them!