It is like the question at the American supermarket, "plastic or paper?"
You cannot imagine what I have seen picks from:
Clorox Bottles (thick white 1970's)
Pretend "chop stixs" sliced and taped together.
Shards of oak, bamboo, pine, poplar, cedar?/cypress (cypress is best - I think it is the oil)
Tuna Bone from behind the head and beneath the eye.
Plastic soda bottles (use the bottom ridge, warm and curl)
Cut section from dental floss container.
Anything in the free "fish bowl" of a music store.
Sincerely,
Gargoyle