I've been seeing a new product around lately—a framing kit for posters like the one in this post. You've probably seen them around, too. The framing kits found in stores often involve adhering the dowel halves directly to the poster, which means, when you try to take it apart, it ruins the poster. Essentially, it's a one-time thing. This DIY project lets you re-use the frame while protecting the poster—making it completely interchangeable.