If I were a U.S. coin...
I'd be a penny -
They're unique... the only coin that isn't silver. They march to the beat of their own drum.
They're small, but not too small... not as big as a quarter, but not teensy-tiny like a dime.
They're lucky... People place alot of faith in them, heck, you just have to find one lying on the ground face up to have a good day.
They don't get passed from one person to the next... They aren't flashy and "important" so they don't get wasted, they usually get to stay with one person for awhile before they get gotten rid of, or lost (but hey, even when they get lost, someone picks them up right away... see above).
They have value, at least some dead white dude thought so when he said "A penny saved is a penny earned."