The "perfect" Barbie Mermaid Birthday Cake

My daughter just turned 4.  She's obsessed with Barbie and mermaids.  So when I found the idea of a mermaid cake made from a Barbie doll, I figured it would be PERFECT for her.  Even better, she asked that her cake be a surprise. :)

  I bought a chocolate cake, just as she requested.
    I bought gummy fish because she begs for them at the grocery store.
      I bought Fruit Roll-Ups Simply Fruit made from real fruit so at least part of it would be healthy.
        I stayed up too late assembling the cake in order to surprise her in the morning.
          My husband said he coudn't wait to see her face in the morning.

"Take my Barbie off of there!  <insert tears and sobbing here> Why is my Barbie on the cake?  I want her off of there now!" 

Not exactly the response I was expecting.  So... after a couple hours of "getting used Barbie on the cake" and a little talk with Daddy, she decided it was OK if Barbie stayed on the cake.  Wooooo-eeeeee!  I better start planning next years' cake now and give her some time to process it.