What about these, do they sound like sewing machines?
http://videos.streetfire.net/Player....DCDED237E9&p=0
http://www.youtube.com/watch?v=AvUMapZUsis
http://videos.streetfire.net/video/8...c851bf28ca.htm
http://videos.streetfire.net/hottest...5e0037048b.htm
http://videos.streetfire.net/hottest...4a011e34de.htm