If I ever had to get a prosthetic limb for some reason, I'd want to try and make it useful in some way that a normal limb never could be. Load some data onto it so I can just like file transfer stuff that would be useful to always have with me. Turn it into an MP3 player. Put a little compartment in there for snacks, cash, bullets or something like that. Or something like a smart watch with a bigger display. A laser pointer. I feel like that's all totally in the realm of possibility and I always wonder why I've never really seen anyone do something wacky like that.

I've thought about it ever since my dad made a joke that some second uncle of mine or whatever had a prosthetic leg, and because it was hollow he could probably store peanuts in there or something xD

Like, if your prosthetic limb can't be as good as a real one, why not make it do stuff that a real one can't do?