As the name states, LoopAlien ($16) is a rapid cord attachment tool, which allows you to easily attach and adjust cords without having to be an expert in making knots. The LoopAlien is made from high quality 6061-T6 aluminum and weighs in at just 2.6 grams. In this video you can see there are 100 of uses for this tool. Use the LoopAlien with tents, tarps, canopies or to attach items to your backpack. Keep it on your keychain or attach it to you jacket just in case.