Interesting thread! Very diverse interests!
1. Toys! I work for LEGO as a concept designer here in Denmark and have spent the last decade as a toy designer/inventor both in US and UK.
2. If fitness counts as a hobby, I cycle and swim a lot. At least four times a week.
3. Cars. Specifically Minis. I currently have a 40 year old vintage Mini that breaks down fairly often.
4. Guitars. I’m very bad!
5. I keep dart frogs, an oscar, giant African land snails, cherry shrimp, and a cat.