I'm writing a story, and I need help with names for a pair of twins.?

Okay, so the twins are really different. One twin is all popular, thinks she's all that, trying to rule some b-list clique while her best friend is the 'queen bee' and she's a brunette. The other twin is very weird lol she's artsy, eccentric, nice too some, sy, and funny. I would like names that 'flow' with eachother. Like, that go kinda with their personalities, but have that twiny thing, like start with the same letter/syllable, end in same syllable, rhyme, or something kinda like phoebe (light) and Melanie (dark). I found this site that kinda works, but I need help lol. a href="http://www.behindthename.com/twins.php" rel="nofollow"http://www.behindthename.com/twins.php/a please gimme some suggestions!