Malibu is a cute name but I wouldn’t go with‘Barbie’ for a middle name. Barbara? Maybe.
Elvis? It’s ok, not for a girl. I would name her, Ellie or Ella for similar names.
And, Aquaman? For a kid. Absolutely, NOT. That is not a normal name for a innocent baby. I feel like, Trisha isn’t trying because, I think, it’s a whole another level of child abuse.
I’m up for unusual names, not commons because me and my sister has an unusual names. Not, Aquaman. Because, it’s NOT far from “unusual.”
Idk if I’m worried about her kids, or Trisha. Because it’s NOT healthy.