Used Wine Corks for sale! These corks are post-consumer, meaning they have been bottled. Corks are sorted to provide a nice variety. Only real corks, no synthetics. Not intended for bottling wine. The previously bottled Used Wine Corks are great for crafts projects like bulletin boards, kitchen back splashes, cork boards, art projects, vases and other creative projects. All corks are made from natural cork, with no synthetics. All corks are mixed to provide a nice variety.