Plastic Coroplast signs are durable, economical, completely weatherproof and very lightweight. Whether you're promoting a political or community event, advertising your business or trade or need general-purpose advertising signage, you'll save time and money creating your own unique custom signs online with our free, easy-to-use templates. Coroplast signs are often used in yards and can be displayed with an inexpensive H-wire sign holder. Typical uses include yard signs, menu boards, event signage, directional or informational signage, tradesmen signs, industrial & construction signs, indoor point-of-sale, temporary signage, low-cost signage, personalized signs, and trade show signs. Color: Unlimited Colors.