i don't have a specific answer but when i think of costumes i think of something that is the type of movies i like such as horror movie then i would dress as something scaring or a chick flick i would dress up as a bride so i hope this gave you some inspiration on what to dress up as :)
Maybe you'd like a costume I did a few years ago. I bought a dozen plush tigers and pinned them to my clothes to look like they were climbing on me. I made some rips in my clothes and splattered some fake blood on myself. If any one asked I'd say I was mauled by tigers. Another variation would be to buy all the plush animals you could find at a thrift store, pin them on, and tell people you're an animal hoarder.
First go to www.kidzworld.com. There click on quizzes. You do not have to make an account. After that click on QUIZ! WHAT SHOULD YOU BE FOR HALLOWEEN THIS YEAR? Answer the questions and get to know what you could be.
You could be a witch with a broom with a black cat on your shoulder! That's what i'm being!ll evil witch laugh ll lol!=D Or you could be a girl punk! One of my friends is being a punk by wearing random cloths cause her mom wouldn't let her be a punk.