I am now working on some simple pole weapon prototypes. Spearheads and other pointy ends are mounted in an axial groove, fixed with two screws. It gives an advantage, if we need to be able to change configuration. Other than that, we may need a permanent fixture.

My idea is to use non-protruding rods and to fill gaps with some kind od resin / glue. It needs to be elastic enough to wthstad vibrations and hits, while rigid enough to transfer force to the shaft.

Any suggestions?