Answer:
What flies around all day but never goes anywhere?
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive!
I bind it and it walks. I loose it and it stops.
A skin have I, more eyes than one. I can be very nice when I am done.
You can only have it once you have given it.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.