This question about retired carbines made me think about my retired arrows. I've a lot of them which can't be shot anymore. Either they've a slight crack anywhere or they're just completely broken.
What are some creative uses for retired arrows?
I'm creating this answer as a community wiki1, since everyone comes to the question and posts a single idea beneath it as a comment :) Instead of doing so, we might want to add the ideas to this list:
Community wiki posts work by partly transferring ownership of the post from the original author to the community. They make the post easier to edit and maintain by a wider group of users, but they do not contribute to any user's reputation.