Halloween Costume

For weeks Callie has been telling us that she does NOT want to wear a costume because she is a Callie.  We have told her that it is fine if she doesn't wear a costume, but she can't go Trick-or-Treating without a costume.  And she desperately wants to go trick or treating...but she is a Callie.  Round and round we have gone.  Looking at pictures of herself dressed up and costumes in the store did not help.  Until finally today I took her to the costume store.  Even after she told me she didn't want to buy a costume.  I told her we would just look.  Trying on the costumes is what it took.  We started out with a Snow White, a Cinderella, and a Mr. Potato Head.  She quickly ruled out Cinderella.  And Mr. Potato head was a close second-the pieces velcroed off and on!  But we thought Snow White was the winner.  Until on our journey (and yes, it really was a journey because she wanted to know what everything she saw was) to the cash register, we saw a "mermaid" or Ariel, another Cinderella, and Abby from Sesame Street.  And we made our way back to the dressing room.  You should have seen us in there with them all laid out on the floor.  I was telling her she had to pick one to buy and take home.  She grabbed all three of the final contenders (Snow White, Cinderella, and the mermaid" into her arms and told me she wanted to take all of them home.  I explained again that she could only choose one.  She looked at me with her big eyes pleading for all of them.  And finally decided on the mermaid.  She put it on as soon as we got home and didn't want to take it off to go to bed.  But don't call her a mermaid, she will adamantly tell you she is a Callie.  But we did find it was acceptable to say she was wearing a mermaid.  And when I told her she had to take it off to go to bed, she laid it out on the floor next to her so she could look at it.  I think it is a success.  Yet she has no clue who Ariel is!  And none of us know how she knows what a mermaid is.