"The Circle Game"

As in the game where you make someone look at your hand and then smack them in the arm.
No one actually knows who the original creator of "The Circle Game" really is, since it dates back before the 1950s.
It's also more than likely that this game does not have one single creator, like the wheel or paper or anxiety. That's the fun thing about these folkloric things, they just kind of appear out of nowhere and then exist forever.

Credits to VICE:
https://www.vice.com/en_ca/article/wj8e74/searching-for-the-man-behind-the-circle-game