I really like using a forked stick to support freehand percussion. It allows long, clean flakes with feathered terminations.

 

These replicas were made by a rocker punch, not my favorite technique but clearly effective.

While pressure flaking, I find it useful to support the preform with edge upright in a nest of crumpled leather. This avoids short bevels and reduces step terminations.

This replica was pressure flaked by antler.

I prefer to flute points by direct percussion while the tip is supported on an anvil.

There are many ways to make notches. This illustration shows the use of a copper punch.

Here are some notched replicas.