I've been using a cane to increase my walking stability for about five years. It's saved me from falling numerous times after a stumble. And it's amazing how much more helpful and gracious folks are, when I'm carrying that stick.
No one has
ever questioned me about it. At airports it will be X-rayed, which it passes, of course. And the TSA agents always offer me a loaner cane to get me through the line. Never even a raised eyebrow.
I made my "walking stick" out of a piece of American Hornbeam, and it has a section of polished cow horn as the handle. Recently at CVG Cincinnati a young TSA agent asked what the handle of my stick was. I said, "cow horn". He said, "Cows don't have horns." I said, "They do if their cow bells don't work." His older colleague looked at him with exasperation, saying, "He's a city boy."
I've made two similar sticks from that stem of hornbeam. Both are solid and unyielding. I built the smaller one (21 oz), then the larger one (28 oz). Both work well, but I'm coming to prefer the heavier one. The hollow in the horn is filled with JB Weld, and the end cap is held on with a screw buried in the epoxy. I found that the JB Weld alone wasn't enough to hold on the cap, if the stick is dropped.
Last month we traveled to Ireland, and my stick attracted a lot of interest and appreciation, all positive. It made things a lot easier when we were walking the trails. I was thinking of picking up a Blackthorn stick there, but didn't find anything I liked nearly as much.
One of those sticks goes with me every night when I walk my little dog. We have coyotes in the neighborhood and I'm sure I could defend us with that stick, if necessary.
Have a look online for fighting cane tactics. The cane is most effective when used to punch or poke, rather than swung. It's also harder to grab or deflect when used that way. I like my sticks about 2" longer than what a physical therapist would recommend. I'm 5' 10" and those sticks are 37".
Ka-Bar makes a tactical cane designed by John Benner of TDI Ohio. It's 0.125" tubular aluminum, weighing 35 oz. It's a beast. Cold Steel makes a line of canes out of solid polypropylene that should work well. I've not seen all their models, but i'm intrigued by several of their styles. However, I have their "Blackthorn" walking stick and it's proportioned too large for me. (Far right, lower photo below)
Drugstore canes are lightweight and suitable for support, but they are useless for defense. I'm always on the lookout for a quality, solid, wooden cane at antique shops, yard sales, hardware stores, etc--something with interesting wood, having some heft (16 oz plus), not bendy, and definitely not brittle. Oak and hickory make good sticks, but they can be harder to find. Or fashion one from a limb or trunk you find in the woods. It needs to be more or less straight, but it doesn't have to be perfectly straight.