Making a set of Holdfasts from some 1" x 1/4" flat stock and some 3/4" solid bar.
I got the metal from my not too local Tractor Supply Store for $25
I got the idea years ago from Harry Strasil on sawmill creek website.
Video of them in use can be seen here: https://youtu.be/0MGAo1WmOJQ
More info found on my website: http://www.bigdaddyoworkshop.com/Home