I found interesting patent...
this patent show combining magnet with transformer
http://www.youtube.com/watch?v=orRvh4K8Qvc (http://www.youtube.com/watch?v=orRvh4K8Qvc)
patent
http://www.google.com/patents?id=FmpXAAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q&f=false (http://www.google.com/patents?id=FmpXAAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q&f=false)
user innovationstation at youtube like this?
http://www.youtube.com/watch?v=NlBg-hVTIOM (http://www.youtube.com/watch?v=NlBg-hVTIOM)
That's cool video ..thanks