Sinking, unsupportive couch cushions are an inevitable indication that a leather sofa has been well used. But even after the cushions have given out, the leather is often still in great condition. Instead of throwing out perfectly good material, repurpose it using this DIY as inspiration. First, remove the leather from the old couch in sections that are as large as possible. Build a frame and attach the leather pieces to it for a comfortable, hammock-like result.