Answer:
I pass before the sun, but make no shadow.
You can tumble in it, roll in it, burn it, animal eat it. Used to cover floors, still used beyond stall doors. Freshens whatever it is placed on. Absorbs whatever is poured into it.
It is a sound of empty, speak and it'll talk back plenty. But all the more you yack, you'll get the same words back.
I can be used to type and point you see. But don't forget, you can count on me. What am I?
Hold these between your knees if you want to set a Cuban beat.
When is it bad luck to see a black cat?