Well, Brandi obviously (to me) named her other two boys after Hollywood stars (Dustin Hoffman, Beau Bridges) and I just thought Keanu suited him, so he always gets that name now!  (Plus he always gets that Maxis custom hair with the pinky-mauve streak in it!) 
ZZ, that never occured to me, but I fortuitously named her next kid Billy Bob.  You know, for Billy Bob Thornton, thus continuing the theme.