Ok, so at 1:15, Don Knotts does a ring trick. Can anyone tell me if it is real, and if it exists.

http://www.youtube.com/watch?v=qYjoUpRsWGE

Yes, it is real and exists. It is not a trick but rather a puzzle and is often made from two bent nails. My Granddaddy had a box full of similar puzzles. I will look for a link to buy the puzzles...

Here's a visual of the puzzle & how to solve it. http://waynesword.palomar.edu/trjul98a.htm

And here's where you can buy it. http://www.amazon.com/Nail-Puzzle-Chrome......08Z26FOU

Great show and a good trick puzzle also.