This is a tough one to categorize. Novelty knives are probably a hobby activity, but a knife forged from high-carbon steel #4 rebar? Obviously something made for land surveying use.
The US Postal Service delivered just such a thing to me today, so I can tell you that it looks like the perfect tool for many surveying applications that don't come immediately to mind at the moment. The novelty value of the knife is huge, forged from a #4 rebar as it is, but the heft and balance are quite decent. It's a real Arkansas Toothpick.
Looks like some very nice blacksmith crafting going on there. Wondering just how good it holds an edge and how easy it is to maintain sharp. The 1/2" is going to be too small for practical use as a handle though. Sore hand fairly quick trying to control the blade for such as skinning out the venison.
The rebar knife is cool. This guy could retire with the "found" goodies I've got in the back of my truck for his "Remnant Knives".
For anybody not interested in visiting the link Kent posted, check out these others:

Railroad Spike

Horseshoe Knife
en.wikipedia.org/wiki/Arkansas_toothpick?
The Arkansas toothpick is a heavy dagger with a 12–20-inch (30–51 cm) pointed, straight blade. The knife is balanced and weighted for throwing and can be ...
You have a novelty blade forged from rebar.
jud
> You have a novelty blade forged from rebar.
Thanks for clearing that right up! I sincerely hope that no one has already ordered one these knives for dental hygiene purposes. You will need a much longer knife to meet Arkansas standards, it turns out.
> The rebar knife is cool. This guy could retire with the "found" goodies I've got in the back of my truck for his "Remnant Knives".
I wonder how good a machete could be made from a Model T axle.
rebar..
This guy definitely has a trick. The mild-steel used for rebar becomes very hard and brittle when heated and can be difficult to weld. ASTM 615 is broad as a football field. After reading up a bit I think that rebar is a lot like sausage; you might not want to know what's in it.
I have a brother that makes knives and his favorite raw material is old automotive leaf springs. He's convinced this guy has a series of tempering or treatments, probably perfected by trial an error. Apparently this fella has found a specific flavor of rebar (there's a jillion blends) and found a series of heat treatments, or possibly "carburizing" to bring the mild steel to a proper temper.
He's got the recipe, for sure.
rebar..
> This guy definitely has a trick. The mild-steel used for rebar becomes very hard and brittle when heated and can be difficult to weld.
According to the knifemaker, Logan Pearce: "My rebar knives aren't made from normal rebar that you would get at Home Depot or something like that. I have contacts with a few rebar companies that make high carbon rebar."
I didn't see a grade mark on the knife handle, but it has an "S" which means it was rolled from billet.
I've got a RR spike knife and a horsehoe knife, well, really more of a letter opener. The shoe was twisted 180° at the middle and one side sharpened. It was made by my moter's cousin up in Nolan Co. TX.. It has one heckuva edge on it.
> > ?. You will need a much longer knife to meet Arkansas standards, it turns out.
Wider too
If you weren't before, you are now on the
Homeland Security watch list. Wait for TSA to give you a fullbody exam the next time you visit an airport.
If you weren't before, you are now on the
> Homeland Security watch list. Wait for TSA to give you a fullbody exam the next time you visit an airport.
Actually, if I ever needed to actually use a machete, I'd think about having one custom made by this fellow if he makes a knife that good from #4 rebar. I'd even supply the leaf spring, too. That knife, while a novelty, is a piece of craftsmanship.
Hmmm, looks like home-made junk ...
For the real stuff look at David Broadwell's stuff:
www.broadwellstudios.com/
Three of my sons each were given a one-of-a-kind from David's when they were going into combat. For an example of one, check out "Andrea's Fighter." (His name is actually spelled differently.) One of my daughters even got one especially for ice expeditions after she went on one to the Greenland Ice Pack for a newspaper story. It is made of a special alloy for use in sub-zero conditions.