This is a rather interesting report. Undergraduate students at University of Bonn developed a 2-hour physics show for the general public that would be understandable to kids aged 10 and up. It appears that the exercise is effective in getting the students to understand the physics concepts even more. Not only that, local high school students have also picked up on the idea and started putting up their own shows.
When I was an undergraduate at U. of Wisconsin-Madison, I had the opportunity to attend a yearly physics show by Dr. Clint Sprott called The Wonders of Physics. It was very popular, and the lecture room was always packed. It has now grown to be very popular and I think he even do some road shows.