Is myself an acceptable answer? If not, then several game controllers lol

An old tablet (Nexus 7). I replaced the outdated software in it with a custom ROM (lineage OS) which fixed a lot of the problems it had, minus the battery life which still sucks.

I always try and fix something first because I’m cheap.

Nah, planned obsolescence is baked into the profit cake - much less fuss to just buy that new Canon inkjet for $79 than try to figure out what's wrong with the old one (and possibly pay much more than that for parts/labor to fix it)

I was gonna say my heart...but it's not fixed yet. Lol

Yes. My first car- a Volkswagen Jetta— it was a lemon 🍋.

Yeah, I did repair my Mini twice with heaps of money, I did repair a relationship that broke up soon after, I threw out a friendship that turned sour though.

Does a relationship count? haha If not... well I've jazzed up an old fancy mirror... but at the moment I'm not too happy with it... I'll likely give it one more go (dabbing gold metal paint with some gold leaf for a gilt frame look).

My brother.

There was a car I refused to give up on.

I haven't, but my mom fixed my (very) old backpack some time ago

If you can fix it, you shouldn't throw it out and replace it. It's better for the environment.