Good mutation ideas

Hi, all! I'm working on a new thing, and I'm looking to crowd-source cool mutation ideas.

I'm looking for both positive/helpful ones and damaging/drawbacks. I intend to throw in some of my own when I get a chance, but I figured I'd ask here.

Either just the fictional idea or a move/mechanical portion as well would be useful, so don't feel constrained to one or the other.

Thanks!

- Alex

Have you seen The Grotesque?

It's a fan-made playbook about someone who is... mutated.

I think seeding this thread with a couple of 'good' examples of the sort of thing you want is going to make it a lot easier for you to get what you're after.

Like, what are mutations like in this game? What sort of threat or scarcity or weirdness are they extensions of? What sort of things do they make possible? What sort of social consequences are there, if any?