My parents called me Trivun. Seriously. My dad's family is from Serbia, my grandad was called Trivun, and it's basically the Serbian equivalent of Trevor. I've never been to Serbia, I have no intention of going there, and we're estranged from that side of the family (save for a cousin and aunt, who my uncle basically abandoned), but I still have the name. Not that I'll change it or anything, I like it myself. I'm the only person in Britain with the full name Trivun Luzaic, and one of maybe a handful just called Trivun (and the others are probably all immigrants, not actually British).
In contrast, I named a pair of characters in one of my ongoing stories Melody and Harmony Crowe. They're twins. I do justify it though, that their parents had a pretty bad sense of humour (they have two sisters called Natalie and Abigail, and Abby is one of the main characters anyway...).