Phase Locking Folk Toy: Hooey Stick
Versions of the Gee Haw Whimmy Diddle available from these sources:
From Etsy: BUY NOW: Hooey Stick Folk Toy
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Phase Locking Folk Toy: rubbing the stick over the notches creates both vertical and horizontal vibrations- and leads to an elliptical motion of the nail in the center of a propeller, which begins to rotate due to friction with the nail. This toy is called a Gee-Haw Wimmy Diddle (see the Wikipedia page- I kid you not) or a Hooey Stick. Note that depending on how the stick is held, the propeller will spin clockwise or counterclockwise.