Guy whipping a massive chain. 0:12 video:
https://www.youtube.com/watch?v=fYPqs69_5g4
Previously:
https://www.homemadetools.net/forum/...753#post129041
https://www.homemadetools.net/forum/...516#post127995
https://www.homemadetools.net/forum/...683#post118481
https://www.homemadetools.net/forum/...4121#post79373
https://www.homemadetools.net/forum/...163#post134570
https://www.homemadetools.net/forum/...782#post133202