Thor Von Clemson's Advanced Fast Hand Finger Wizard Master Class by Brendon Small.
Note: This guy is also the co-creator of the Adult Swim show "Metalocalypse". He does the music for the show as well.
Another Note: This, and other funny videos, can be found on the Home Movies DVDs. This and "Baby Pranks" (another I uploaded) is on the first season DVD.
Note Again: In Metalocalypse, Skwisgaar did a guitar class using this same name.