And Halloween spanned several days, so why not several costumes.
Take 1...

But it seemed cruel to pack her up in this all night, so...
Take 2...
But giraffes are way too sweet and cuddly, and totally not scary, so...
Take 3 (beginning of the night)...
Take 3 (after the crickets attacked, literally)...

Clearly, this pirate is not as tough as most. Maybe if she would have had a sword...