My latest kindling splitter is a Hudson's Bay pattern hatchet head that I picked up on EBay, cleaned up and reshaped slightly and rehafted.
My splitter is a Kelly patent double bit head that I found in a fieldstone fence around a slave graveyard in Tuscaloosa, Alabama.
I cleaned it up and rehafted it, of course.
By the way, I call it my voodoo ax because there was a tobacco pouch under it that held some small bones, feathers and such. I replaced the pouch where I found it and weighed it down with a chunk of plowshare.
I'm just glad that I don't have to rely on fires for heat anymore... .