Soo-in Yang and David Benjamin (The Living)'s RIVER GLOW: a floating LED light system embedded in bodies of water to warn of water pollution (in addition to creating an ethereal glow at nighttime
Surrealien wallpaper is slapped onto walls, disregarding the surface. Windows, doors, switches rip holes - all transformed into continuous patterns
Issey Miyake's website has a great little animation, using rotoscoping.