Robert F. Kennedy Jr. Face Yard Sign, RFK Jr. Big Head Cutout, Face Cutout, Kennedy Face Yard Sign with Metal H-Stake. Economical and durable, our Coroplast Yard Signs are a staple of outdoor advertising. These Big Head Face Cutout Yard Sign full color direct printed graphics are vertically fluted for use with an H-Stake. Coroplast is used for yards, parking, real estate, and election signs. They are waterproof.