Answer:
In the forest, this blends in just right, but every December it is covered with lights. What is it?
The eight of us move forth and back. To protect our king from the foes attack.
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive.
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
Face with a tree, skin like the sea. A great beast I am. Yet vermin frightens me.
People take me on walks and I run and have fun. What am I?