Balancing badminton shuttlecocks - GIF

Balancing badminton shuttlecocks.

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Previously:

https://www.homemadetools.net/forum/...022#post153191
https://www.homemadetools.net/forum/...625#post186022
https://www.homemadetools.net/forum/...668#post111174
https://www.homemadetools.net/forum/...677#post205988
https://www.homemadetools.net/forum/...332#post142272

amazing skill to do that without reference marks (that i could see)

It is fascinating. BUT, how many could you do in an hour? I would not be able to do that day.

Must be licensed, sanctioned professional competition shuttlecocks, not the ones that come in the $10 Walmart sets...