Here here! You can't say something like "very well crafted" and not give us pics! Some of us live for this stuff!
As for materials, MiT is right. Give the site a search. Some popular materials will include hacksaw blades, street sweeper bristles, feeler gauges, steak knife blades, windshield wiper blade inserts, and plumbing snake.
I am curious about the coat hangers. Did you heat treat the metal when you were finished? Coat hangers are very pliable, and unless treated, I wouldn't expect them to make good picks.
db