Quills

noun

1. The lower shaft of a feather, specifically the region lacking barbs.
2. A pen made from a feather.
3. Any pen.

   "He picked up his quill and wrote a poem."

4. A sharply pointed, barbed, and easily detached needle-like structure that grows on the skin of a porcupine or hedgehog as a defense against predators.
5. A thin piece of bark, especially of cinnamon or cinchona, curled up into a tube.