What if you had pvc to fit a nerf ball (ammo type),put it on a homemade trigger and plunger assembly and shot balls out of it? It might not be that accurate, but in wars where balls are grenades, it might be useful.
Just an idea, but what if someone put little spring loaded wings into the sides of a stefan? You would fold them in, load the dart, and when you fired it, the wings would pop out and cause the dart to glide. Theoretically, it would get better ranges.
Im thinking of trying to make a homemade pistol, and I dont know what type of trigger to use. I originally wanted to use a modified BS-4 system, but now that isn't looking so good...