With the past election in Canada my family was given a big sign to be put on our lawn supporting our chosen party. And low and behold the sign was made out of coroplast! After the election I saved the sign and was able to expand my C&C cage, literally for free. Just an idea for another place to get coroplast (the smaller signs are just plastic wrapping but the large ones are coroplast just waiting to be made into pig mansions ).