Answer:
Glittering points that downward thrust. Sparkling spears that never rust.
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
You get many of me, but never enough. After the last one, your life soon will snuff. You may have one of me but one day a year, When the last one is gone, your life disappears.
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say.
It stands upright and can be quite grand. Its secret is not hidden but right at hand. What is it?
What language does a billboard speak?