Big sister & little sister costume ideas

Written by chelsea oliver
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Big sister & little sister costume ideas
Sisters will enjoy planning their Halloween costumes together. (sisters image by Lisa Eastman from

Almost every girl loves playing dress up, and Halloween is the traditional time for wearing costumes. Two or more sisters who want to dress together for Halloween or any other occasion, such as a birthday party, can have as much fun thinking of ideas as they can while they are dressed up. Since little sisters typically want to emulate their older sister, start by brainstorming with the oldest.


Pair costumes reflect things in life that are known to go perfectly together. For example, waffles and a bottle of syrup, bacon and eggs, toothpaste and a toothbrush, peanut butter and jelly, peas and carrots, and spaghetti and meatballs. Any costumes that reflect a similar pairing will work well for big and little sisters. You can also consider character costumes, such as different coloured M&Ms, the children's two favourite cartoon characters. For instance, the sisters can dress up as Disney princesses.


You can also think in terms of opposites when you are planning costumes for big and little sisters. One fun idea is to have one sister dress as the devil while the other dresses as an angel. Let the children decide amongst themselves who dresses up as which. A variation on the opposition between good and evil is dressing up as war and peace. The sister who represents peace can carry an olive branch while the sister dressed as war can feature bright red face paint. Other ideas for opposite costumes include the sun and the moon, or day and night, and seasons such as summer and winter.


A theme that truly suits the pairing of a big and little sister is that of transformation in nature. These costumes will look the most appropriate if the big sister dresses as the creature as it has been transformed and the little sister represents the creature's original state. For example, tadpoles become frogs, eggs become chickens or other birds and caterpillars become butterflies. You can also explore the animal theme in terms of baby and adult animals; the age differences between the sisters will help to reflect this. For instance, the little sister could dress as a lion cub while the big sister is an adult lion with a flowing mane.


Dress both sisters exactly the same. The children can work together to come up with a costume such as princesses, fairies, cowgirls, witches or ballerinas. You can also choose costumes such as bumble bees, cheerleaders, butterflies, genies and vampires. If the big sister and little sister want to dress up as the same thing while still retaining a sense of uniqueness, consider using different colours, such as pink and purple for one girl and white and silver for the other.

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