Will Barber at HB Forge will make you pretty much anything you want for not much money. He made me a Viking bearded ax with a hammer poll. If you draw him a picture he can make what you want. Also the hawk in "The patriot" doesn't have a hammer poll, it is actually a pipe bowl for smoking tobacco. That is what is referred to as a "Pipe hawk" (astoundingly cryptic back then weren't they). They were made by the thousands in France and England and used as trade goods by the early settlers and frontiersman. Will also has some unfinished pipe hawk heads if your feeling a little adventurous.
What you might want to do is see if you can get one of his spiked hawks in squaw size then just cut the spike off and shape it into a hammer poll yourself. Dremel tool or hacksaw and a file should do it. Will stands behind everything he makes too.
The Patriot hawk has a curly maple handle. Straight grain hickory is stronger, cheaper, but doesn't look nearly as nice. If you are going to really use it I advise hickory, if it is just going to be something cool to own then upgrade to the curly maple.