I have hobbies, lots of them, although many are more dabbling than anything else. Serious hobbies are my dancing and my firearms collection. Ancillary to dance is sewing - which in turn segued to old sewing machine collecting. And costuming and jewelry, blah, blah.
Dabble: The Jeep - I can't say as its "serious" as yet. "Light" wood and metal working - which dovetails with both the sewing machine collecting as well as the jeep, and even the dancing to a certain extent - as well as a certain ancient Egyptian musical instrument I make and sell. I also make and sell Bustle Pillows - of all things, which was yet another segue from my love of costuming.
I was a musician centuries before I was a dancer, and that segued into piano technology, I refurbished an old upright piano from 1918, and plink on it. Still dabbling with it from time-to-time, in fact, I just ordered some new bits for it.
Since I date from the days of "Iron men and wooden computers", I still mess around with programming, and building various computer stuff, and have a couple of old ones to play with that are a LOT more fun than anything made today - from the mid 1970s when computers were still fun! Do some "light" web-work (all hand-coded) and graphic design. I've messed around for decades with photography, Sony A-Mount which came from Minolta's film cameras.
I collect all kinds of crap. WW 2 service pistols. Dance veils. Angel and fairy figurines. Vacuum tube equipment, just bought a CB radio like the one my dad had. The afore mentioned sewing machines, mostly what's now called "mid-century" models, particularly those made by the long defunct National Sewing Machine Company (NSMCo). My wife and I seem to accumulate a lot of clocks.
Then there are the things that I'm interested in, but just never enough to have a go at. Chess and Tarot cards come to mind - I'm a horrid Chess player but the game and the sub-culture fascinates me. I study a lot of different things, ancient Greece in particular, Greek language, ancient history, WW 2 history, etc, etc. Sub-cultures fascinate me in general: Jeep, Firearms, Goth, Belly Dance (of which I'm immersed totally in), Lolita Fashion, Chess, Piano, Computer, and Pagan (of course) are all sub-cultures I'm involved with at one level or another.
I'm sure I've forgotten something, but this is plenty!