Dead blow mallet. By Pask Makes. 24:33 video:
https://www.youtube.com/watch?v=qFv1_14vVhw
Previously:
https://www.homemadetools.net/forum/...131#post172399
https://www.homemadetools.net/forum/...198#post169029
https://www.homemadetools.net/forum/...342#post161705
https://www.homemadetools.net/forum/...880#post152610
