I had heard of this trick, but had never seen it done. Nice!
The razor blade prep is in the first video.
http://www.youtube.com/watch?v=hi7LT0OBOis
http://www.youtube.com/watch?v=BiuEZoJGR9w
The razor blade prep is in the first video.
http://www.youtube.com/watch?v=hi7LT0OBOis
http://www.youtube.com/watch?v=BiuEZoJGR9w