Ask HN: How can a 17-year-old make money (online/offline)?

I've been asked numerous times from teenagers around my age how they can make money (online or offline), anything creative or simple.

I'm putting together a piece on the new Quora blog and would like your input.

Some stuff I've already thought of: - Web design/dev work - IT Tech Support

If there's anything you've done in the past, or believe would work for teenagers, please let me know in the comments! Thank you!