The experment would involve a small NIB magnet levitating between or on the diamagnetic material pyrolytic graphite, unlike other forms of levitation this doesn't require power to run such as electricity or that the levitating item be moving to maintain the effect. This does seem to require occasional adjustments, presumably as room changes temperature and two NIB magnets, one large and one small. The small magnet can levitate and rotate and tends to loose speed very gradually when set in motion, unlike a bearing that must make contact, or even some other magnetic levitations, the most significant force slowing the small magnet, at least at low speeds is air resistance.
The magnet could then be attached to the center of a necessarily very light object, for example a small disc, this is less straightforward than it sounds as cardboard tends to be too heavy and paper too flexible, I've found a thin, light, stiff plastic that works. Even smaller fins could then be attached to the edges of the disc at 90 degrees that are black on one side and white on the other, like a Crookes Radiometer.
At least the levitating part of this experement would be in a vacume and the rig would be made of non-magnetic materals to prevent attraction or eddy currents between the levitating magnet and the edge of the rig. A laser could then be directed at the edge of the disc to accelerate it to potentially vastly greater speeds than the more conventional blowing though a straw.
If this were constructed how quickly could the levitating material accelerate, pushed around by the laser.
For example how fast would be expected in RPM be given a 500mW laser, a typical vacuum for experiments and 10 hours?
edit: The tags won't let me choose magnetism or magnets, they keep changing to electromagnetism.