Sphere making tool. By Scrap wood City. 11:30 video:
https://www.youtube.com/watch?v=a6cL4cgZ8ps
Previously:
https://www.homemadetools.net/forum/...884#post167748
https://www.homemadetools.net/forum/...196#post169027
https://www.homemadetools.net/forum/...038#post171975
