Answer:
What has legs but doesn't walk?
What color can you eat?
What kind of coat can only be put on when wet?
When I am alive, people sing. When I am dead, people clap hands. What am I?
I am the outstretched fingers that seize and hold the wind. Wisdom flows from me in other hands. Upon me are sweet dreams dreamt my merest touch brings laughter.
No matter how little or how much you use me, you change me every month.