Answer:
A tiny bead, like fragile glass, strung along a cord of grass.
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?
It can cause deflation of tires when dropped from the rear of spy cars.
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
Fatherless and motherless. Born without sin, roared when it came into the world. And never spoke again.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.