Yeah, this is a neat image and all, but it's a blatant example of a designer not even doing a little bit of research into how physical objects work before opening up Photoshop.
Would it be cool to have a sofa shaped like a cloud that magically floated a couple of feet off the ground. Sure, why not. But that sliver of magnet on the floor would have to be seriously powerful to support it, and there's nothing anchoring it in place. If this existed, that cloud would shoot off in some direction and end up on the floor every time someone sat on it.