There is always the option of buying a blank or two and doing the handle yourself. There are some blanks that are ready for you to just put your own spin on the handle.
I will say beware of the addiction of knife making. N
Advise on how to is available here. The satisfaction is great. I also like to pull mine out during slow times on the stand and think of what I might change on the next one. Add joy to the hunt, successful in getting a critter or not.
Chris