Youtubeは: http://www.youtube.com/watch?v=ct72rlVULew 元ネタは: http://www.youtube.com/watch?v=omLve_vezbA 元々ネタは: http://www.youtube.com/watch?v=WuGsRmEEx6s
http://www.nicovideo.jp/watch/sm20066140