I'm retired and have time on my hands for two hobbies.
I like assembling 1/700 scale model ships. I put together a lot of models as a kid; the newer kits are much more detailed and have more parts. They are more complicated, more fun, and more money. I have ten battleships, five aircraft carriers (one under construction), and a few odds and ends, including the Titanic. These models are typically a little over a foot long.
I also write. I have five novels for sale on Amazon, plus one being serialized on Amazon Vella. One of the novels (and a sequel that I'm revising) plus the serial have ties to my experience as a JW. I haven't made a lot of money, but it's enjoyable. Most of the books are based on history, as are the models, so there's a connection between the two hobbies.