I made my own cane from a piece of wood dowel the same diameter as the largest rubber cane tip in our local hardware. I drilled the tip and added fishing sinkers then plugged the hole with plastic wood and replaced the rubber tip. I wrapped the straight handle with skateboard tape and drilled a small whole thru it below the grip and ran a piece of paracord thru it and tied it in a loop. I have carried it on board a plane. After the xray, a TSA supervisor asked me about the weighted tip. My reply explained that, if dropped, the weight made it land more upright where I had a better chance to grab it before it went all the way down, then demonstrated for him what I meant. Like some other posters, I have had years of LE baton training.

BTW, don't put your hand thru the loop put only your thumb and wrap the cord around your hand. If a thug grabs the end of your cane, you can release it before he can throw you around but you still have leverage so as to make it unlikely to drop it from the impact of a blow running up thru your cane. Just my $0.02 and inclination to do things economically.

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SWCA 3417 HF 642 NRA-TC