I remember when the slot racer fad first hit. I raked and scraped and saved enough money to buy the parts and build a car. I got it together, started saving to by a controller --- just about the time all the tracks in town closed down for good. One of my uncles was into the hobby big time and actually won some trophies. I remember he had a car that looked like a vintage dirt track sprint car, and that it had a "Wilson Golden Screamer" motor in it. Funny the details one remembers.
As far as my other hobbies? Oh man... it's a long list. Mind you, I don't have the time to be active in all of them and some have been "dormant" for years, but they still interest me. One of the things in the latter category is flying. I've got my private pilot certificate but haven't been actively flying in a loooong time. It got too expensive for me.
I also like to shoot - anything - especially black powder. I'm a certified NRA Training Counselor, something I got into indirectly through my involvement with my sons' boy scout troop. I'm also into scouting. I was scoutmaster for 8 years, venture crew advisor after that. Totaled I've probably got 20+ years involvement in some capacity, been to Philmont 5 times, also Northern Tier Canoe Base (Bissett Canada) and Florida Sea Base. I still love to camp and back-pack. Mrs. Bear is into that too as long as she doesn't have to deal with "kids" (she went with me once on a Philmont trek and had a 'bad experience').
I also play drums, being a big fan of classic rock. (The "GFR" part of BearGFR stands for Grand Funk Railroad), And... you'd think that I'd get enough of this at work since that's what I do for a living, but I also tinker with computers - write a lot of my own utility software, have my own email and web servers, etc.
"Some day" I'd like to learn to SCUBA, learn to sail (boats in the 40 ft class), take a performance driving class, learn to fly hot air ballons, para-gliders....