Daniel Morrison, an architecture student in Austin, came up with this cardboard design that when linked together creates wall panels, curtains, room dividers and more. We can think of a handful of ways to put it to use, and although we don't have a machine to cut several out at once, it wouldn't be too hard to tackle with a pair of scissors.
Although this isn't intended to be a DIY idea, we don't see any reason why it can't be if you have the determination to cut out that many cardboard shapes. Maybe get a few friends together and have a Star Trek (but none of that Deep Space Nine stuff) marathon and make yourself a wall.
You could find enough free cardboard to make whatever size you desired. It could be one small panel, or a full out wall — all for free.
(Image: Meredith Quigley)