My UFO design would be a very powerful but small magnet spinning above the main portion of the saucer craft. The saucer section would also spin according to the experiment, consequently an inner module would have to have the same set up with a spinning magnet but it is timed to exactly counter act the spin of the upper magnet.
Hopefully you can angle the main magnet to provide lift and directional capability. Or it may take 6 more lifting magnets that are orthogonal to each other to provide direction.
My physics is probably complete malarchy but something like this may work someday.