Here are a few uses for magnets that work great for me. I was on the stream one day and noticed my fly kept hanging up on my hemostats attached to my waders. The hemostats had picked up a spare neodymium magnet from my shop bench. I ended up using the magnet to hold flies as I changed them for the rest of the day. These are economical, and easy hacks. I would highly recommend making a few of the rod holders to keep your fly rod from ending up on the ground next to your car, stepped on, or broken in a car door. It’s the cheapest rod insurance you can have.