After spending seven years to develop just one piece of furniture i.e. bed, Janjaap Ruijssenaars has created a first of kind 'magnetic system' supporting a bed. It will be the world's most expensive (not sure one can call it luxurious) bed at 1.6 million dollars. By the way it is one big rectangular magnet.
This bed utilizes strings for just one purpose, i.e. so you don't float away into some corner of your room during the night.