Every few years, as I rummage through a drawer or bag, I stumble across my Duncan Butterfly. Then the fun begins!
I guess its got something to do with centrifugal force, the inverted sides of a Duncan Butterfly just make it that much more awesome to me. I've been teaching my "around the world" and "walk the dog," but we've got nothing on Bryan Jardin, in the video above.
For $5 a Duncan Butterfly is a steal. I prefer the green.
Duncan BUTTERFLY YO-YO (colors may vary) via Amazon