I just wish I could find a decent outlet for good quality octagon hickory handles. That's not as easy as one might think.
House Handle Company. Google them and give them a call.
if you have a bench belt sander it is pretty easy to make an oval handle into an octagon. You can thin a handle down until it looks and feel like a tool handle rather than the clubs you find in most places today.
I go to a hardwood store and search for second growth hickory or ash then lay out the handle, cut it out with a band saw and use the bench sander to shape. Finish with a orbital sander wetting with warm water a couple of time to raise the grain, scorch with a propane torch, scrape with a cabinet scraper or a piece of glass than finish with thinned linseed oil. I usually seat the head after the second coat of oil. Never use a steel wedge.
This summer I may get back into making some handles. Since all my tools were left at the farm I will probably pick up a Harbour Freight bench sander and some sort of band saw. If I do I will document the way I do it from start to finish.