I've to agree with Draven on this one. Common knowledge and public domain don't render something free of exposure. The Balducci Levitation is public knowledge and can easily be found on numerous YouTube videos. Quick, easy, and accessible.
In any case, I recently sold my Lean before MJ's death. It's kind of unfortunate; I would've loved to use it as a tribute to him sometime in the future. It's surprising how saddening it is to think about how he's not with us anymore; he was an admirable figure in music, pop culture, humanity, and magic. I highly recommend the Malloy product. It's (moderately) practical for street work if you don't mind sticking with one location and a decent amount of set-up. I think buskers and television workers would use this most successfully in the street environment. In my opinion, it was made for the stage, but I've used it in spontaneous settings before. Part of the gimmick is extremely big and heavy so I think that something worth noting before shelling out the cash for it.
RS.