Buying and selling computer parts. I know it doesn't sound childish but I don't really make much, it's like 0.01 percent of my salary I get paid as a software developer.

Random people call me, I meet them, they buy some random PC parts and it just feels nice.

App and OS updates.

Catching a fish. Even seeing someone else catch a fish, especially kids catching fish. There's nothing else quite like it. Pure excitement and joy.

New GTA game.

Swimming. Pool, Ocean, Lake, River....all the above. I could swim all day.

Covered bridges are so cool. Once in a blue moon I see one.

New video game releases from Nintendo. I'm all grown up and primarily game on PC but I still buy pretty much every Zelda release and recently beat Super Mario RPG 2023.

frilly dresses. plush toys and collectible figures. cute pens/paper/stickers/markers.

Ice cream. Whether it is to calm myself down or to have a snack to enjoy, it is one of my favorite delicacies that I often am excited to eat.

Money, if you show me money I will get excited and happy

Cool new tech & gadgets have always awakened the excited child in me.

Rainbows, shiny things, stuff that smells good, really bright colors (a lady I work with sometimes wears magenta sweaters and they make me happy), gears, bells, and flowers. Off the top of my head, but there's probably more.

I love just sitting and watching the rain. The fresh smell after a strong rain. The way everything gets cooler and darker just before to end in a myriad of colors afterwards.

Seeing furniture left out for trash pickup. As soon as I see it I immediately start plotting out how I could transport it and where it would fit in my house or what it could replace. Though in all likelihood, I never need it and I really never pick any of it up.

Thrifting too is a “thrill” sometimes when you find something really good, but you have to wade through alot of crap and anymore the prices are less likely to be a deal.

Big vehicles. Esspecially old tanks, considering I'm a history nerd, but even just driving by a construction site or airport and seeing all the cool stuff.

Glitter and cotton candy.

I adore mechanical stuff that looks too complicated to comprehend on the first look, old sewing machines, old typewriters, mechanical calculators, knitting machines, clocks and watches, marble tracks etc. I was abysmal in school math, today I'm collecting old mechanical and electronic calculators and slide rules (and use them & show 'em to the kids at schools) Scales and maps are another obsession. Maybe because we were too poor for mechanical toys like Meccano or better Lego technic when I was a kid? Btw I loved the sesame street episode with the what-happens-next-machine as a very young kid. Then again, my wife says I have mild ADHD or something in that direction, idk.