i have used similar magnets in the past due to I tie over carpet. several samll hooks lost on carpet can become a nightmare. great tip though. also sears sells a magnetic bowl that is good if you are tying several flies of the same size. you just dump the hooks in the bowl and pull one out as you need one. if you knock over the bowl then the hooks are safely in place with no spills.
Romans 10:9-10 KJV