I also have ~no interest in getting a tattoo, at best curiosity ambivavent. It might be a lingering sense of perfectionism preventing me from choosing a specific thing, which is why if I ever go for it I'll ask a close friend to do a stick-and-poke of whatever they choose, like how a blank page can be intimidating so just make a squiggle and off you go.

That would be a meaningful marker of place, time, and relationship to me.