Answer:
Wind and cord combine, buzzing in the box. In all this we find, though to some the use is lost. What am I?
If you lose me you may cause people around you to lose me too.
I fly away as soon as you set me loose. People around you may slowly move away once they sense my presence.
I have three feet but I cannot walk. What am I?
You will always find me in the past. I can be created in the present, but the future can never taint me. What am I?
What never gets any wetter no matter how hard it rains?