Imagine yourself on a beautiful, tropical holiday — or just fake it. For around $US40 and a couple of hours of your time, you can have a highly usable portable green screen that you can put anywhere.
IndyMogule takes you through the build steps and other things you'll want to consider (like proper lighting), but basically, you're going to need a bunch of PVC pipe and some thicker green fabric. It's a pretty simple, intuitive process of just assembling the PVC pieces into a stable frame and hanging the green fabric tightly. I built a larger version back in 2006, and aside from cutting the pipe, it was a pretty effortless undertaking. I used it to make a video that got me involved with a very cool project at my job at the time, so never underestimate the wonders of where DIY can take you. Either way, it's still pretty awesome to have a green screen you can collapse and take with you.