I saw a bit on the Today show about someone famous who had completed Toastmasters training, and they demonstrated the technique of opening a bottle of champagne with a saber. I was a little disappointed to see that they actually knocked the neck off of the bottle with the sword rather than just eject the cork, but it's still damned impressive.
I was a member of VICA (Vocational Industrial Clubs of America) in high school, and they had a public speaking track. They recommended Toastmasters training for people who wanted to continue training after graduation. I've also seen it recommended for people who want to overcome an introverted personality.