Now I figured that the costumes might have gotten a little confusing so hopefully this will make it easier.
I had fun picking out the costumes. I thought they are fit the characters pretty well.
Hinata - Princess
Naruto - Prince
Sasuke - Vampire
Sakura - Angel
Sai - Ghost
Kiba- Werewolf
Shino - Bug
Ino - Devil
Shikamaru - Black Cat
Chouji - Chef
Lee- Gai-sensei
Ten-Ten - Samurai
Neji - Pirate
Gaara- Mummy
Temari- Witch
Kakuro - Puppet
Kakashi- Suna Ninja
Kurenai- Gypsy
Gai- Lee