Cats love to decorate their homes (which we live in). Like all great, moody artists, they take out their darker emotions through creative media. This often involves scratching and tearing at furniture. Our couches and chairs can become casualties of these artistic endeavors.
My Modern Met tells us that embroidery artist Stephanie Louise repaired her cat-modified couch with a floral and ivy pattern over the damage.
This is a clever response to a common problem for us cat servants. I could see a professional market developing for this service, as it preserves furniture that would otherwise look ravaged beyond use.