At events like school sports days, such as dance performances and cheer battles, it’s common to wear special costumes instead of just gym uniforms.
When you put on an outfit that’s different from your usual gym clothes, it naturally boosts your energy and performance.
In this article, we’ll introduce handmade costume ideas that are perfect for sports day.
We’ve gathered a variety of DIY ideas, from pieces you can wear over your gym uniform as an accent to full-body coordinated outfits.
Even items that look difficult can often be made easily depending on the materials you use, so give it a try!
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- [Dance Songs] Recommended for school sports days and athletic festivals! A curated selection of popular tracks that are fun to dance to
- Recommended for nursery and kindergarten sports days! A collection of exercise songs to enjoy every day
- [Nursery School] Recommended Songs for Sports Day Dance
- Cheer songs to hype up the sports day! A collection of motivational tracks recommended for kids
- [Sports Day Cheer Songs] A roundup of classic cheer songs and recommended tracks for parody versions
- [Childcare] Recommended for sports day performances and dances! A collection of classic and popular songs
- Recommended for older kindergarteners! A collection of dance songs perfect for sports day
Handmade costume ideas recommended for sports day (1–10)
princess dress

There’s no doubt your heart will race at these adorable, voluminous dresses! Here are some princess dress ideas.
Among children who dream of being a princess, some especially love costumes.
For those kids, let’s make fluffy, full-volume dresses out of colored plastic bags.
It’s a good idea to choose the colors together with the children.
These days, many kids also look up to idols, right? These could work perfectly as idol costumes, too! Definitely try incorporating them into your sports day events.
Monster
@emmachannel_1001 Boo dressed up as Mike Wazowski 🎃 A handmade outfit by her daycare teacher 👚Halloween#HalloweenCostumeMonsters, Inc.#MikeWazowskiLife with children1 year and 1 month old#GirlMom
♬ Monsters Inc. – From “Monsters Inc.” – The London Film Score Orchestra
Introducing a monster costume made with colored plastic bags.
For the hat worn on the head, wrap a deep paper plate with a plastic bag and create a logo/mark from construction paper to stick on.
Adjust the hat size where the elastic band will hold it in place.
Match a light green plastic bag to the child’s size, then cut it with the sleeve openings and neckline in mind.
Add elastic to the neckline and gather it to fit.
Once you glue on the monster’s eyes and mouth made from construction paper, it’s complete.
By changing the colors of the plastic bags, you can create a variety of colorful monsters.
dinosaur
We’ll show you how to make an adorable dinosaur costume that looks cute from the back, recommended for ages 0 to around 2.
Prepare nonwoven fabric in the color of the dinosaur you want to make.
Cut the nonwoven fabric to fit your child’s head and sew it into a hat shape.
When making the horns on the hat, use two triangular pieces layered and sewn together; this increases strength and helps the horns stand up firmly and stay in place.
For the dinosaur outfit, stuff the tail with cotton to give it volume, and use hook-and-loop fasteners for the shoulder straps to make size adjustments easy.
Add elastic at the ankles to gather the fabric so the costume won’t drag on the ground when walking.
Guri and Gura

Let us introduce costumes inspired by Guri and Gura that are perfect for a sports day.
Prepare patterns for the clothes, ears, and hat sized for your child, and let’s get started.
It’s easier if you create the patterns using your child’s clothing as a sample.
Cut the felt according to the patterns, and cut out the clothes, hat, ears, and each part.
For the tail, make it long and cut it to match your child’s height.
When sewing the ears together, overlap the base portions as you sew to add a three-dimensional look—highly recommended.
When sewing the sides of the hat, sandwich the ears in and sew them together.
Attach the brim to finish the hat.
For the clothes, sew the tail onto the back first, then sew the rest together.
These will look adorable and are sure to be a hit at the sports day.
oni; demon; ogre; spirit (depending on context)

Here’s how to make an oni costume without a pattern.
Prepare yarn, glue, and felt.
First, cut yellow felt, sew the waist and hem to form a skirt.
Attach tiger-stripe patterns cut from black felt, and insert elastic at the waist to finish.
For the oni horns, cut felt into a half-circle.
Shape it into a rounded triangle, then attach the tiger-pattern black felt.
Wrap yarn around a book to add volume for the oni hair.
Use the remaining yarn to secure the horns and the bundled yarn, and the horn mask is complete.
It’s a simple method, so give it a try!
Pineapple
A costume I recommend for a sports day where kids try various events is a pineapple.
Let’s make a bright yellow outfit consisting of a hat and a skirt! Cut a yellow plastic color bag to create each part.
You can make a pineapple-style skirt or a cute frilly skirt.
Decorate the pineapple hat with colored tape and felt fabric, then thread elastic through the waist and the head to finish.
Try making this outfit for sports day so kids can move their arms and legs freely.
honeybee
Why not try making a honeybee costume that also appears in picture books and nursery rhymes? It can be worn over regular clothes, making it an easy and recommended cosplay option.
The costume features creative touches like a hat inspired by a bee’s head, wings made from construction paper, and a tail crafted from colored plastic bags.
You could also add bee-themed songs and dances, or include them as activities.
Create costumes that will both lift the spirit of the sports day and soothe everyone with the children’s adorable look.




