GNU/Linux Tools for Blue Team:
Learn how to use command line tools and a free/cheap Linux server to do dozens of Blue Team tasks, including DFIR actions (reading fingerprinting file type, getting hashes), acquiring data (downloading threat feeds, doing whois lookups, making API calls), and manipulating the data you collect. Even the most experienced Linux users should learn a new trick or two!
Model Rocketry:
Learn how many adults who loved model rocketry in their scout or schoolkid days are returning to the hobby and supersizing their creations. You will learn how some technological advancements (like composite motors and parachute releases) can help you make bigger rockets and land them safely in a small field.