Things You'll Need
Instructions
Find some rock that is appropriate to make your arrow or spearheads out of. For best results, use slate, flint, jasper, quartzite or obsidian.
Use your hammer (or another hard instrument, like another rock) to break off a piece of rock to work with. Chip the rock a little at a time until it takes the shape of an arrowhead.
Sharpen your head, using another stone. You can choose to leave it somewhat dull for safety reasons if you choose.
Split your stick 1/4 inch down the middle and place the arrowhead inside the gap. Tie the head in place with the leather, twine or string.