Renesmee is found in Twilight and The Vampire Diaries (at least as noted in the FanWiki.) The crossover is interesting but not known to be directly tied to me–at this time.

Zoey and Nicole are found in The Vampire Diaries and The House of Night series.

Zoey and Nicole also happened to be found as character names in Zoey 101. Jamie Lee Spears auditioned for Twilight.