The video accessible here below is really great!
Put on line by a team from Tel-Aviv University (with the French Guy Deutscher), we can see a metal piece leviting over or below! a surface. Staying in suspension close to its "support", it can be placed in any angle, parallel to the support or not, staying always like that whilst moving and following the way given per the shape of the support.
Slightly pushed, the metal piece turns staying like in weightlessness.
The article accessible here below explains (in French) how does it work, and movies of the metal piece show how does it move.