I find it singularly lacking in silvery shimmers, I'm afraid. I've only ever known one; a Lurlyn, actually; and she was supremely forgettable and, yes, more than somewhat hickish.
Since you derive it from
Lorelei, how do you pronounce it? My former classmate was, predictably, Lur +
Lyn, but would
Lorelei cause it to rhyme with
Caroline rather than
Marilyn or
Josephine?