The Champagne Greek and the Champagne Surgeon are the two best champagne saber’ers that I have ever known. I have even seen the Champagne Surgeon saber a bottle with the stem of a broken glass!
(Seriously, she did it!)
Attached are some interesting articles and perspectives on champagne sabering (including the champagne sabering record!).
Legends & Myth: The History Of Champagne Sabering:
Champagne Sabering Record: