The only accessory you're missing here is a bottle of water. Whenever someone gets annoying, you can just pop it out and shout WATERBENDING! x) It's handy for a drink too but spraying people is way more fun. Besides, if they complain you can just say it's part of the character. xD
Let's talk, Nova. I know there would be someone you knw that's your #1 fan because I'm just a stranger to you.I love cosplayers because I wanna be one but there's lots of possibilities that I wouldn't.