25+ Costume Ideas Starting With the Letter "I"

Updated on September 7, 2019
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Hi, I am Adele, and I have run a large fancy dress shop in Essex, England, since 1998. I'm happy to pass on my knowledge to help others.

Letter and Alphabet-Related Parties

In costume party season, the pressure is on to host a fun, unique party. One idea for a fun party theme is encouraging your guests to choose a costume that starts with a specific letter of the alphabet.

Here are some ways to do that:

  1. Allow guests to dress up in a costume related to their initials (or just their first names if you want to narrow their choices).
  2. Ask guests to dress up in costumes related to your initials.
  3. Choose one or two letters to inspire their costumes. These could be randomly or deliberately chosen.

When you first send out invitations, it's possible that your guests will be confused about what you're asking them to do. To avoid confusion, be sure to explain the idea thoroughly since if your guests are confused, they might not dress up. Even worse, they might skip your party altogether.

This article will give you some ideas for costumes that start with the letter "I," some based on famous characters or people.

If you have any other ideas, please put them in the comments section so you can help other people too.

Have a fantastic party!

Incredible Hulk costume
Incredible Hulk costume

1. Incredible Hulk, The: The Incredible Hulk is a comic book hero who has appeared many times on screen. His main superpower is his incredible size and strength, which is activated in times of emotional stress. Wear ragged brown shorts and paint your body green.

2. Ibiza Club-Goer: Ibiza is one of the Balearic islands off the coast of Spain. It is best known as a tourist destination for young people looking to party hard. Ibiza's motto clothing-wise is: "Less is more." In that vein, you can wear almost anything lightweight, glitzy, and skimpy. You can also supplement your costume with UV makeup or bodypaint. Animal onesies are popular as well.

3. Icarus: Icarus is a well-known character from Greek mythology who flew too close to the sun in his eagerness to escape from the island of Crete. The heat from the sun melted the wax holding his homemade wings together. Wear a Greek costume with broken or droopy wings.

4. Ice Maiden or Queen: This character is open to interpretation, but generally the ice queen is depicted wearing silver or bluish-white robes, with glittery silver hair and a crown of icicles. If time or ambition allows, a face design of frost tattoos could be effective. You can look to Disney's Frozen for some other ideas on the costume.

5. Ice Skater: The modern ice skater outfit offers the opportunity to wear something sleek and colourful in stretch-knit or lycra, often accentuated with glitter or sequins. Men wear outfits featuring a deep V-neck and women typically wear skirts that allow for plenty of movement and drama. You can either carry skates with you or modify your shoes to look like figure skates.

6. Iceberg: An iceberg is perhaps not the most practical costume suggestion, but it could certainly come in handy for a Titanic party. The best approach is to wear a semi-transparent material over a haphazardly shaped base, possibly accentuated with penguin or polar bear accessories. You could also just wear the top of an iceberg and claim that the rest is hidden. If you can find a model liner to balance on your head, it might add to the effect and would certainly impress other party-goers.

Mrs Incredible costume
Mrs Incredible costume

7. Incredibles, The: The Incredibles are a family of characters in an animated film by the same name from 2004 in which superheroes come out of retirement to battle a mysterious foe. They wear matching red spandex suits with an "i" logo on them, and black eye masks. This makes a great group costume.

8. Ice Cube: An ice cube could be a smaller-scale version of the above iceberg costume, perhaps used in conjunction with a novelty foam martini glass costume. You can easily make this costume out of a cardboard box and bubble wrap. Alternatively, you could dress as the rapper Ice Cube.

9. Icon: The word icon can refer to a whole host of costumes, from pop icons to computer icons to religious or fashion icons. Dress accordingly.

10. Idol: This term is now frequently associated with popular culture with famous characters like Madonna, Michael Jackson, Marilyn Monroe, etc. being some possible choices for that interpretation. You could also go as a religious idol, such as the golden calf from the Old Testament. Spray paint a cow mask gold, and wear either a golden bodysuit or gold clothing with some hooves. Complete the look with either a fake or real septum piercing.

11. Igglepiggle: Igglepiggle is a large blue creature from the British pre-school children’s TV series In the Night Garden…. He doesn’t say much, tends to fall over backwards if he’s surprised, and usually leaves the garden in a boat, which he sails using his red blanket. Wear a blue pillow-like costume. If a costume is available to purchase, it will be mascot-style.

12. Igor: Igor is typically a stock character from classic horror movies in which he plays henchman or minion to a mad scientist. Often, Igor is deformed in some way, e.g. hunchbacked. The costume may derive from a character like the Hunchback of Notre-Dame or another stock grotesque character. Wear a cloak and disfiguring make-up such as a drooping eye.

13. Imperial Guard: There have been a number of styles and types of imperial guards throughout history and in popular culture. Most recently, the term is best associated with the Emperor’s royal guard in the Star Wars films, in which the guards are dressed in distinctive crimson robes and masked helmets.

Indian Man costume
Indian Man costume

14. Indian: While this may not be the most culturally sensitive costume to go with, it has remained popular. There are two takes on it:

a) Native American Indian, i.e., one of the many tribes of original occupants of North America. There are a number of sub-categories within this costume as well. You could go as a warrior, a chief, or a woman. Costumes usually involve moccasins, leather clothing with a fringe on it, beaded jewelry, long black hair in plaits, and headdresses with feathers.

b) A native of India, for which a costume can vary from a Nehru suit to a simple dhoti, or the elaborate saris and costumes associated with Bollywood.

15. Inspector Clouseau: Inspector Clouseau is the ridiculous main character and detective from the Pink Panther films, originally played by Peter Sellers. Wear a beige trenchcoat, a moustache, and a hat. A magnifying glass can also make a great prop!

16. Inspector Gadget: Inspector Gadget is a well-known cartoon character notorious for having a wide range of improbable gizmos and gadgets concealed about his person to aid his crime-fighting. Wear a trilby and overcoat, but feel free to have fun with props.

17. Inuit: Inuit is the more politically correct name for the inhabitants of Northern Canada and the Arctic regions. Wear a fur-lined leather jacket and leather booties.

Indiana Jones Costume
Indiana Jones Costume

Have you been to a letter-related fancy dress party before?

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18. Indiana Jones: Indiana Jones is the archaeologist and action-hero character from the four Indiana Jones films which all-star Harrison Ford in the title role. Wear a safari shirt, a fedora hat, a bull-whip, and a brown leather jacket.

19. Invisible Man: The Invisible Man is the anti-hero of the novel by HG Wells of the same name. Wear bandages in crepe paper or tissue (not fabric) around your head and hands. You can also use gloves. Dark glasses, a hat, and a three-piece suit will complete the look.

20. Irish Leprechaun: The Irish leprechaun is a popular costume, especially around St. Patrick's Day. The outfit usually involves a hat, a jacket, and breeches in shades of green with shamrock symbols or motifs built into the design. You can also pair the clothing with a red beard and wig and carry a crock of gold.

21. Irish Dancer: Irish dancing reached a wider audience and gained popularity when a Riverdance piece was performed for an international audience during the 1994 Eurovision Song Contest. Costumes usually involve elaborately decorated skirts and dresses for women, with coloured shirts and black trousers for men.

Ivy (poison)
Ivy (poison)

22. Ivy: This costume could possibly be derived from the Batman villainess, Poison Ivy. That character has bright red or auburn hair and wears a green costume, whereas a straight ivy outfit can substitute a green wig and green skin colour with ivy markings for an earthier look. The costume could also be used in a Christmas context as a partner to a "Miss Holly."

23. Iron Man: Iron Man is the alter-ego of wealthy industrialist Tony Stark in the Marvel comic and films of the same name. While you could make a costume at home, it will be a little difficult as nearly the entire getup is artificial. Luckily, an official costume can be found on the market.

24. Isambard Kingdom Brunel: Isambard is a famous British engineer known for building the first tunnel under a river. Wear a Victorian frock suit, stovepipe hat, and mutton-chops and feel free to accessorize with a large cigar.

25. Italian: There are a number of takes on this costume idea, from a famous Italian from history like Leonardo de Vinci or Lucrezia Borgia to more generic Italians like a gondolier or even a costume based on the characters of the American reality television series, Jersey Shore.

26. Italian Army Officer: Obviously, Italian army uniforms have varied throughout the ages. However, the best-known costume is probably based on the egotistical character from the British comedy series ‘Allo, 'Allo who fancies himself a ladies' man. Wear a grey or grey-green uniform, many decorations, and an elaborately feathered bi-corn military hat.

27. Insects: Since they are one of the most abundant creatures on this planet, you have many choices to pick from when thinking about insect costumes. You could be anything from a cockroach to a bumblebee to a grasshopper or a beetle. Costumes are easily available to purchase, and there are many different wing and antennae accessory options.

Would you consider either attending, or hosting, your own letter based costume party?

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What do you think? Leave comments, suggestions or questions here!

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    • profile image

      ur dumb 

      6 months ago

      with the letter i of all letters you chose i ur dumb

    • profile image


      5 years ago



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