I have no clue what's already in the works but just some ideas myself and others have had.
Comment any we've missed.
Outfits
Clown
Joker
Ninja
Alien
Astronaut
Tuxedo
Suit
Cowboy
Egyptian
Mummy
Ghost
Ghost face
Grim Reaper
Dog
Cat
Mega Planet superhero
Disco
Fluffy monsters
Zombie
Penguin
Reindeer
Banana
Runner (Sports look)
Pig
Skeleton
Unicorn
Dinosaur/t-rex
Panda
Pumpkin
Snowman
Sumo inflatable
Elf