Answer:
You seek me out when your hunger's ripe. I sit on four legs and smoke a pipe.
I can go through glass without breaking it.
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
People make me, save me, change me, and raise me. What am I?
I let water fall on you while everyone else stays dry.
The more of me you take, the more I appear behind you. What am I?