Making a bone awl is a simple primitive project. First score the bone with a piece of flint to give it a line to break along.
Then strike it with a stone to break it roughley along that line.
Then shape it against a stone, this bit is very tedious, each of the other steps will only take a few minutes. It took about an hour and a half to do the shaping for this awl though.
Eventually though you will have made a simple bone awl.