I have a hiking stick that I lashed about a 5/8" hardware store dowel to the side in a way that allows the dowel to pivot. The dowel is held parallel to the hiking stick shaft with simple rubber bands. The hiking stick is tremendously useful when covering steep or slick country, but the dowel can be deployed to make a bipod in an instant. After I went to Africa and saw that their tripods were wrapped in innertube to make them quieter I did the same with mine. Still rock simple and cheap. If I was ever in a situation where I needed to jettison my sticks for some reason, I could easily make another set and certainly would. One of the very most useful pieces of my hunting kit.
