levitating inverter magnet experiment design

Experiment to achieve a levitating inverter magnet, tractor beam magnet

With superconductors
With liquid nitrogen and material that becomes a super conductor in contact with liquid nitrogen
 (Safety required)

With extra light material for the ring and Bismuth (Diamagnetic)

With electromagnetic fields
With an electromagnetic levitation device
With multiple electromagnetic levitation devices
With a magnetic levitation platform
  Should be done carefully so it doesn't damage

It would be very nice if the outer magnet could spin around the ring with magnets Without any friction.

Experiment design by Jeffrey Koelewijn in 2015