Juneteenth 2023 Yard Sign Cutouts - Coroplast African American Freedom Day June 19th 1865 Independence Day Juneteenth Yard Sign With Metal Stakes. Economical and durable, our Coroplast Yard Signs are a staple of outdoor advertising. This June 19th 1865 Independence Day Juneteenth Yard Signs with Stakes full color direct printed graphics are vertically fluted for use with a Stakes. Coroplast is typically used for yard, parking, real estate, and election signs. They are waterproof.