Roller Derby - I strap on skates, pads, and helmet and then knock people on their ass. It's great fun.

Painting expensive plastic with expensive paint.

Hardware modding. Consoles, handhelds, old computers, RC cars... whatever.

Urban exploring (for lack of a better term) with no purpose other than to discover. I live in a city and I'm constantly just wandering around going down streets I've never been down or into alleys I've never been in or checking out stores I've never been to. This is my approach when I travel to other cities and other countries too, I often don't have a plan for my trip/vacation, I just arrive there and then start to wander and see what I find.

I do enjoy bouldering and also jump rope. I suppose those are niche…

Quite a few, actually

• Artisan Keycap collecting, to a lesser degree mechanical keyboards (I usually use them as displays to showcase my artisans)
• Boardgame collecting and playing. I'm a big fan of modern area control games. Also trying to design some. Slowly.
• I curate a magic the gathering commander cube. Hopefully mtgcube gets a community somewhere around here
• Reading, lots of fantasy there.
• EDM shows and festivals, recently. Probably have been going to too many, but I always jump in with both feet

I like sewing - I make a few pieces of clothing once in a while but usually I'm just mending things or adjusting the fit of store-bought clothes so that they look better on me.

I also love gardening - growing vegetables outside and mushrooms inside. I'm pretty new to both but the mushrooms in particular are really fun - many of them grow a lot faster than vegetables, so it's exciting to have a faster feedback loop and try little experiments to find what works.

I build and fight combat robots. Think Battlebots but smaller.

My favorites (right now) are learning to play star wars legion better, getting back into gunpla, finding mobile games that aren't utter garbage, trying and failing to find decent friends, and sorrowfully watching hasbro destroy magic the gathering.