The 100th day of school is a significant milestone for young students, marking the completion of nearly half a year of learning and growth. To celebrate this occasion, many schools in the United States and around the world encourage students to participate in a fun tradition: wearing a costume that represents 100 days of school.
A 100 Days of School costume can take many forms, and the only real requirement is that it incorporates the number 100 in some way. Some students choose to dress up as 100-year-old versions of themselves, complete with glasses, walking canes, and gray hair dye. Others create costumes made entirely of 100 items, such as buttons, stickers, or even cotton balls.
One popular approach to the 100 Days of School costume is to create a shirt or hat that features 100 small objects, such as beads, pom poms, or plastic jewels. These can be glued or sewn onto a plain shirt or hat, creating a colorful and eye-catching display of the number 100. For a twist on this idea, students can try creating a shirt or hat that features 100 things they love, such as 100 favorite animals, foods, or hobbies.
Another popular option is to create a costume that represents 100 in a more abstract way. For example, students can dress up as a calculator, with large buttons labeled with the digits 0 through 9, and an extra button labeled “100.” Or, they can create a costume that features the number 100 in multiple languages, representing the diversity of the student body.
Here are some costume ideas for 100 days of school (Kids Old Man/Women Costume).
1.) Boys Old Man Costume Kit
Transform your youngster into a sweet grandpa or a cranky old man with this Boys Old Man Costume Kit. Don’t forget to give him a few wrinkles to complete the look!
2.) Toddler's Old Man Costume
He is sure to win the throwback costume contest in this Toddler Old Man Costume! This exclusive costume includes the hat, glasses with attached mustache and eyebrows, shirt with attached vest, bow tie, and belly!
3.) Kids Old Man Costume
This exclusive Child Old Man Costume is perfect for your jokster of a guy! This Halloween throw this elderly man costume on and see all the laughs he gets!
4.) Kids Little Old Man Costume
This funny Kids Little Old Man Costume will have your little kid complaining about the temperature of his tapioca pudding! This hilarious Halloween costume is the a great costume for any teeny-tiny curmudgeon ready to own their true personality. Also func
5.) Kid's Grandpa Costume
He’ll tell you all about how he had to walk to school uphill in the snow when he was a kid and how could you argue with him, looking so genuine in this Grandpa costume.
6.) Girls Old Auntie Costume
Your little one will be the cutest old person around in this Old Auntie Costume for Girls. This costume features a yellow prairie style dress with flowers, a matching bonnet and a white apron. Everything they need to complete their old lady look.
7.) Girls Old Lady Costume Kit
The Girls Old Lady Costume Kit will change her look dramatically! This fun and crazy kit features a grey wig with pink curlers, blue floral shawl and flower clip.
8.) Kid's Grandma Costume
If your little girl loves your Grandma so much, then have your daughter dress up as her when you get her this Kid’s Grandma Costume! Or wear to school for the 100th Day of School!
9.) Infant Great Grandma Costume
If you’ve ever uttered a phrase like, “She looks just like her Grandma,” we have this perfect costume for you. Show Grandma how much your little girl adores her with this exclusive Infant Great Grandma Costume.
This year transform your child into a funny Granny with this Grandma Costume for Girls for Halloween. She will have some fun being someone from another generation.
11.) Old Lady Costume for Kids, 100th Day of School Granny Dress Up 19 Pcs Set
12.) Kids 100 Days of School Costume for Boys – Halloween Old Man Costume Hat, Glasses and Grandpa Vest Set for Child,LightGrey1-4
$29.99
13.) 1920's Boys 100 Days of School Grandpa Costume Set – Gangster Fedora Hat, Old Man Eyebrows & Moustache for Kids & Child Halloween
14.) Kids Little Old Man Costume Pretend to be Grandpa Costume for Boys Small(4-6)
15.) 100th Day of School Old Lady Costume for Kids, 100 Days Dress Up Granny Wig Grandma Glasses Cane Halloween,6
16.) Old Man Costume 100 Days of School for Kids Boys 1920s Gatsby Gangster Costume Accessories (style 2)
17.) Grandma Costume Kit – Child Standard, Multicolor – 1 Set
$22.82
18.) Little Old Man Child's Costume, Small
$24.58
19.) Boys Old Timer Kit Child Assorted, One Size
$9.07
One of the great things about the 100 Days of School costume tradition is that it encourages creativity and self-expression, while also fostering a sense of community and shared achievement. Seeing all the different costumes on display can be a fun and inspiring experience for students and teachers alike, and it’s a great way to celebrate all the hard work and learning that has taken place over the past 100 days.
If you’re planning to create a 100 Days of School costume, there are a few things to keep in mind. First, be sure to start early, as some costumes can take a lot of time and effort to create. Second, consider using recycled or repurposed materials, such as old T-shirts, cardboard boxes, or plastic bottles, to make your costume more eco-friendly. And finally, don’t be afraid to get creative and think outside the box – the possibilities are endless!
The 100 Days of School costume tradition is a fun and exciting way to celebrate an important milestone in a student’s academic journey. With a little creativity and imagination, students can create costumes that are not only visually impressive but also reflect their own unique personalities and interests. So, whether you’re a student, parent, or teacher, why not join in the fun and create your own 100 Days of School costume this year?
More 100th Day Of School Costume Ideas

Photo Golda Och Academy on Flickr
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Photo The Barstow School on Flickr
100th Day of School
Lower school students celebrated the one hundredth day of school with costumes, poems, counting exercises and treats. (Photo by Todd Race)

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100th day of school
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The pre-K…

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Photo Westminster Schools of Augusta on Flickr
100th day of school
Jan. 18 marks the 100th day of the 2012-13 school year. Grades pre-K through second celebrated in a hundred different ways. Not literally – however, the activities were numerous, not to mention fun.
The pre-K…

Photo gastonchristian on Flickr
100th Day of School

Photo Westminster Schools of Augusta on Flickr
100th day of school
Jan. 18 marks the 100th day of the 2012-13 school year. Grades pre-K through second celebrated in a hundred different ways. Not literally – however, the activities were numerous, not to mention fun.
The pre-K…

Photo The New School AR on Flickr
Kindergarten 100th Day of School

Photo Westminster Schools of Augusta on Flickr
100th day of school
Jan. 18 marks the 100th day of the 2012-13 school year. Grades pre-K through second celebrated in a hundred different ways. Not literally – however, the activities were numerous, not to mention fun.
The pre-K…

Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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What she thought she would look like at 100 years…


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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Golda Och Academy on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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Photo Klein ISD on Flickr
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I think my son was tired of me and my camera today. Lol. But he just looked so darned cute in his 100th day of school crown.

Photo UASCSAtoms on Flickr
100th Day of School
Look! Two of our teachers (Mrs. Wilson and Miss Lasek) are 100th years old on 100th day of our school.

Photo The Barstow School on Flickr
100th Day of School
Lower school students celebrated the one hundredth day of school with costumes, poems, counting exercises and treats. (Photo by Todd Race)
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