Holy Nativity - Donkey Figure Yard Sign Cutouts - Merry Christmas Yard Décor for Holiday Winter Decorations Outdoor with Metal Stakes. Economical and durable, our Coroplast Yard Signs are a staple of outdoor advertising. These Holy Nativity - Donkey Figure Yard Cutouts 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.