Burgum 2024 Yard Sign - Coroplast Doug Burgum For President 2024 Lawn Sign, 2024 President Election Burgum Signs with Metal H-Stake. Economical and durable, our Coroplast Yard Signs are a staple of outdoor advertising. These outdoor Doug Burgum 2024 Yard Sign full color direct printed graphics are vertically fluted for use with an H-Stake. Coroplast is typically used for yard, parking, real estate, and election signs. They are waterproof.