I mainly focus on my cattle ranch now.
When time allows, I repair certain collectable electronics that still have value and I have recently repaired some nice 1970's silver face Pioneer receivers which are very collectable and valuable to some (old school) people and I have a few waiting for me to repair them, perhaps this winter.
Fishing, Hiking, Hunting, Sports Shooting, RVing (of course that) Electronics (may get into Ham's soon), I also do a lot of mechanical work and have a shop just for that purpose, but most often the mechanical work I do is repairing the machinery and equipment I use on the ranch.