Answer:
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive.
In your fire you hear me scream, creaking and whining, yet I am dead before you lay me in your hearth.
What is the thing that stays the same size, but the more it's used the more it decreases?
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around
The weapon of choice to create the biggest shock.
People take me on walks and I run and have fun. What am I?