astronaut
Alien, animal, apple
Aliens for one is probably a more common costume that starts with the letter A. If you don't mind the less authentic costumes then there would be lots like, an apple, an airplane or other nouns and objects that starts with A. You could also impersonate someone that has a name starting with the letter A say like, Ashley Simpson or the likes. Party Ideas adding onto this answer. There are tons of costumes that begin with the letter A. Adam and Eve Addams Family Aladdin Alice in Wonderland Airforce Officer Airplane Pilot Alexander the great American Gladiators American Idol Angels Animal House Animal Planet Anne Boleyn Annie Oakley Aphrodite Apple Ariel Army Astronaut Atomic Wedgie Aurora Austin Powers Aviator Aztec
I don't know if you are thinking of animals, people or even inanimate objects, but you could try these ideas: an apple, an aardvark, ape, Abe Lincoln, abominable snowman, asparagus or an aspirin pill. I know that some of these are kinda dumb, but at least nobody else will have the same costume.
Hope this helps.
You could dress as an admiral, airline hostess or pilot, Aladdin, Alice in Wonderland, ambulance attendant, angel, animal, Apache, Arabian prince/princess or astronaut.
Astronaut is probably the most common. There's also angel, Aphrodite, and Alice, (from Wonderland).
Some things that you wear that start with the letter D include: Dress Denim Drawers Dockers
· earmuffs · evening dress · elbow pads · earrings · ear plugs
You can dress as King Neptune, King Kong, a king, kitten or a knight.
Jailbird, jockey and judge are fancy dress ideas for a female. They begin with the letter j.
Yeti
Someone could dress as an umpire. The costume begins with the letter U.
Widow
Quaker Dress
teddy bear
You can dress as Tarzan or a tramp. You can dress as Tony the Tiger or the Tin Man.
Jailbird, janitor, Jedi, jockey, the Joker, judge and Julius Caesar are dress up ideas.
Animal
You can dress as E.T. You can dress as Elvis Presley. You can dress as an elephant.
Augustus Ceasar
· dress
Unicorn, Umbrella
You can dress as King Neptune, a king, kitten or a knight.