Richard, THANKS ! What an interesting and eye opening question. Some great responses that we have other lives away from the bench.
Music seems to be a common thread for many of the responders. Me too. While the only thing I can play is the stereo The music I play pretty much dominates my day. I also help out at the local college radio station, WMSE, . Ehttp://www.wmse.org/schedule/
every now & then I get to curate a show. Next up is "Early British Blues".
I like to read, mostly fiction. I've become a pretty good cook, "World Cuisine", as my waistline is proof of that. Building mostly armor. But I always have music on in the background.
I think that the reason so many responders play music and model is related (cooking too). Whether you read sheet music, follow a recipe or the instructions of a kit it's about effort and detail. A half a$$ed effort gives the same result. You get what you put into it. But as we practice and hone our skills things start looking good, sounding well, tasting yummy. Things you want to share with your peers. One word, PRIDE !
Travel is a big part too. I've toured Europe quite a few times via the train. Taking language courses at the local junior college then visiting that country in the Spring. This year I went to Oktoberfest and got caught up in the big storm, Xavier, trying to get to the armor museum in Munster. Also, road trips in the US. We've been focusing on the National Parks lately. Eating local delicacies and visiting historical sites & catching lots of music along the way. Camping mostly and have met some really nice folks along the way.
I hope you haven't bored you folks with "what makes me tick".