Okay! I recently decided that I really needed to get some of my collections out of bags and boxes and onto boards. Long ago, in a store far far away, I bought a giant sheet of coroplast (corrugated plastic) with the intention of making pin boards, so this thread will document my process of making each one as best I can. My first one is already in progress! This was sketched onto the coroplast sheet with pencil, then cut out in quite a painstaking process with scissors and an xacto knife. I'd love to find a better way to cut this stuff... Thought about a foam cutter (basically a hot wire), but that seems a bit more dangerous. I then covered it with duct tape to help round off edges and create a better hold for the pins (thanks for the tip, @Booger1964 !!). The next task is to figure out how, and with what, to cover it. I'll keep you updated, and if I remember I'll post step-by-steps!