Answer:
What type of shoes do spies wear?
Send poorly behaved children to me and let them sit here.
An open ended barrel I am shaped like a hive. I am filled with the flesh and the flesh is alive.
I start new then become old. Start clean but be one dirty. I usually start big then become little.
I am of several different kinds, but the one you pick doesn't do its job. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.