I have a bunch of them, mostly stuff from particularly nostalgic periods in my life. I get sentimental so easily haha. I still have this really old fleecy coat I've had since I started school. I'd never give it up even though it's not my style anymore as I mostly wear puffer coats now
I have a steel spoon, that my parents got by sending away cereal box tops or baby food lids or something like that. It's engraved, and says in my native language, "ℕ𝔼𝕄𝕆 𝔻𝕀𝔻 𝕀𝕋", in that exact font (which is why I use it for my display name).
Thry fed me baby food with it. I ate my breakfast cereal with it every day as a child and teen. I still eat with it whenever I need a spoon.