Manually-operated washing machines.
https://www.youtube.com/watch?v=wHZg35cGCzo
Previously:
https://www.homemadetools.net/forum/...584#post155314
https://www.homemadetools.net/forum/...873#post119499
https://www.homemadetools.net/forum/...917#post156616
https://www.homemadetools.net/forum/...488#post142901
https://www.homemadetools.net/forum/...106#post157452
