It's not just how they manage to throw their voice. It's also about the expressions that they manage to potray on the puppets that is just out of this world.
This video has been viewed by more than 84 million users on youtube. Just goes to show how good Jeff Durham actually is. He has a whole host of characters, videos of which you just need to search in Youtube.
This guy is not that bad either. Paul Zerdin is from England, and he is really good. The link that I have posted over here is the one that I liked the most.
Well... time for me to get back to viewing them videos!! :)