Little clamps. By Pask Makes. 22:35 video:
https://www.youtube.com/watch?v=uf8UR5lt9Vs
Previously:
21 plans for homemade clamps
https://www.homemadetools.net/forum/...260#post180927
https://www.homemadetools.net/forum/...274#post176972
https://www.homemadetools.net/forum/...120#post176368
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