Answer:
My teeth help me suck.
What is easy to get into but hard to get out of?
Whoever made me doesn't want me. Whoever bought me doesn't need me. Whoever uses me doesn't know me. What am I?
I am what bring things together. Without me everything you see would be a total mass or debris everywhere.
I invade your home once a yearโฆbut only if youโve been good.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.