I'm not sure how many have done this as well, but I've deliberately allocated lots and lots of elastic IPs on AWS in order to find one that I liked, for use by a long-living instance.
There’s gotta be an overlap of people who do that and people who pick their phone numbers based on look, right? Which I do. I also recently changed my Tailscale host name (animal-animal.ts.net) and spent enough time cycling through choices to find a short, memorable, and pleasing one that I even started to question how I was spending my time.