Tennis ball javelin head for medieval combat

thingiverse

I crafted those javelin heads for Viking reenactment combat, a relatively safe projectile but use with caution nonetheless. To maximize strength, I recommend printing with high infill. You'll need the following items: a 28mm diameter wood shaft, a tennis ball, a nail, and some glue. First, cut slits in the tennis ball to weaken it. Then, attach the tennis ball to the print using glue. Next, insert the shaft into the socket (you may need to lightly sand it for a snug fit), and secure it by driving a nail through. Remember to use these javelins only on armored targets.