Answer:
What has armor but is not a knight, snaps but is not a twig, and is always at home even on the move?
What lives where it cannot breathe and has a hole in its back
I have a tail. I can fly. I'm covered in colorful feathers. I can whistle and I can talk
In all the world, none can compare, to this tiny weaver, his deadly cloth so silky and fair.
Looks like a hippo crossed with a unicorn.
You use it between your head and your toes, the more it works the thinner it grows.