Superconductor + Liquid Nitrogen + Magnet = :D

[5614]

This could work kinda like this:

http://www.scitoys.com/scitoys/scitoys/magnets/suspension.html

 

but with a superconductor.... however magnetic fields destroy the superconducting properties of a superconductor, it'd be interesting to see what then happens, probably it'd behave like a normal wire.

[labview1958]

A strong magnetic field destroys the magnetic field of bulk superconductors, I am using very weak forces.