As we all know by now, the Second Amendment protects the right for citizens of the U.S. to bear arms. In 48 states and territories, it is also legal for Americans to carry their weapons in the open, in public, in plain sight. While these "open carry" laws allow users to wear various firearms, it doesn't allow for all weapons. Some non-firearms are legal for open carry, some aren't so much.
Depending on where you are in the United States, you'll want to check the local ordinances before you strap on your other weapons. Seriously, this site is We Are The Mighty, not We Are The Lawyers -- so check those laws.
1. Swords – California
In California, any fixed blade must be sheathed. But not only is it legal to openly carry a sheathed sword, it's the law. Any kind of concealment for bladed weapons is a misdemeanor. Bladed weapons in most states where they are legal to carry, are usually illegal if they're longer than five inches. Concealed blades, like cane swords, are always illegal.
2. Religious Knives – U.S. Military and all States
Because Sikh religious practices sometimes require the use of a kirpan, a small sword used in religious practices. Because the bladed weapon is anywhere from three to nine inches long, it can be illegal in most states, but many state courts and legislatures found this violates the Sikh's religious rights. The U.S. military allows for Sikhs to wear the bladed weapons in uniform.
3. Flamethrowers - Everywhere except Maryland and California
The perfect tool for melting snow and killing insects is now commercially available and legal for open carry in 48 states. Why? Because it runs on good ol' 87 octane gasoline. Homemade flamethrowers were previously regulated based on the fuel they used. Now nothing can stop you from getting to work in those deep February snows.
4. Tomahawks - Not California, Colorado, or Texas
Unless you're carrying a tomahawk made of wood and stone (in which case you should also be wearing a Native American headdress and traveling with a construction worker, policeman, and cowboy), then a tomahawk is actually a pretty popular weapon. Battle tomahawks are legal to own in most states that allow a fixed blade, except Colorado. Texas prohibits "any hand instrument designed to cut or stab another by being thrown." In California, you should be on your way to a re-enactment or camping while holding your tomahawk, otherwise the law can give you a headache over it.
5. Battle Axes - Washington State
Washington State Football Coach Mike Leach famously announced he uses a Viking battleaxe for home defense, instead of his firearms. It is legal to open carry any type of weapon in Washington State, so long as it is "not carried in a way that may cause others alarm."
One trailblazing action group is working on getting restrictions to battle axes lifted in Texas.
6. Ninja Stars - Montana
In Montana, it is legal to openly carry any weapon that is legal to own. So, throwing knives, lightsabers, ninja stars, you name it: anything not expressly forbidden by case law or state legislation is fair game. Go nuts, ninjas in Montana!