Mark Shuey Sr dba Cane Masters teaches and makes/markets canes suitable for defensive use. He has a whole martial arts system, and also markets a basic system for the elderly and infirm. He’s located in Incline Village, NV. He also collaborates with GM Tom Forman in presentations to disabled veterans. Go to [email protected]. As he points out, a walking cane can go pretty much anywhere, including the White House, airports, and so on. The ADA addresses medical devices. Pretty handy in a non permissive environment. There are a couple YouTube pieces out there that are pretty informative.
A cousin to the cane, the umbrella comes to mind. The unbreakable umbrella has some interesting YouTube presentations. Try Real Self-Defense – No-Nonsense Techniques and Tactics for Personal Protection | Realistic Defenses Against Attacks (real-self-defense.com).