Here in louisiana they put a law on the books that you dont need signs its suppose to be a given. People use to be able to use the good old saying"i am looking for my dog" and they would not be in trouble not anymore in louisiana.I had some signs made up by a company on the web but i can remember the name. They are aluminum and pretty thick i will have to see if i can find the site.here is a pic of my signs
