I've been trying to come up with surnames for my lead characters in two different series that I'm developing. In one, I've pretty much decided that she comes from a Polish family, so that narrows it down. In the other, she's a citizen of a fictional nation, so there are many more possibilities. In each case, I'm stuck on what to do. Should I go for some kind of "meaningful" name, or is that too cliche? What about a "cool" name? Or would that pull the reader out of the story?