Eye-catching! Interior decoration ideas to brighten up your school festival
A school festival that gets the whole school buzzing like a celebration.
In addition to preparing your attractions and stage performances, you also need to think about interior decorations that match each theme.
In this article, we’ll introduce decoration ideas that are perfect for a school festival!
We’ve gathered ideas not only for each classroom hosting an attraction, but also for hallways, staircases, and other school spaces.
Be sure to incorporate them to match the mood of your attraction.
Let’s create interiors that make everyone feel giddy with excitement just by entering the space or walking down the corridor!
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Eye-catching! Interior decoration ideas to brighten up your school festival (1–10)
confetti balloon

A confetti balloon is a balloon filled with paper sprinkles known as confetti.
The confetti showing through the balloon adds both festiveness and a sense of dimension.
To make one, cut tissue paper to create confetti, fit a plastic bottle opening into the mouth of a stretched balloon to pack the confetti inside, then inflate the balloon.
If you just put the confetti in, it will clump together, so after inflating, use static electricity to bring the confetti to the outer surface—that’s key.
Be sure to create a festive look by thoughtfully combining the colors of the balloon and the paper.
Retro signs and posters
We often hear the terms “Showa retro” and “Heisei retro,” and it’s become a trend—partly because retro signs and old-fashioned streets make for photogenic shots.
You often see people taking photos with retro backdrops and posting them on social media.
So why not create a retro-style background yourself and turn it into a photo spot? Instead of going to the trouble of sourcing actual signs, you could collect posters or paint a backdrop that looks the part.
These days there are plenty of tutorial videos on paints and techniques for achieving a shabby-chic finish, so be sure to use them as a reference!
projection mapping

If you want to try digital decorations, projection mapping is highly recommended! You might be thinking, “Wait, you can do that at school?” Surprisingly, you can! As long as you have a projector and a white wall, you can express yourself freely in any space—classrooms, hallways, anywhere.
You can even project onto three-dimensional objects, not just walls.
With just a few clicks on a computer, you can instantly change the atmosphere of a space, making it a perfect match for theater and other stage performances.
Eye-catching! Interior Decoration Ideas to Jazz Up Your School Festival (11–20)
Curtain made of Suzuran tape

Do you know suzuran tape—the kind used to tie up unwanted books and newspapers? It actually works perfectly for decorations, too! If you hang lots of strands from the ceiling like a curtain, the semi-transparent, colorful look is super cute, and the crinkly texture is so much fun to touch.
If you shred the tape into thinner strips, it turns into a fluffy-style curtain.
You can get it cheaply at 100-yen shops or home improvement stores, so it’s also great for decorating school festivals on a tight budget.
Umbrella Sky
One decorative style you’ve started seeing at event venues is the “umbrella sky,” which uses umbrellas as decor.
It’s a simple setup—just hanging colorful umbrellas in the air—but it’s surprisingly photogenic! Part of the appeal is how versatile it is: you can unify the colors in the same tone, create a seven-color gradient for a rainbow effect, and more.
Why not try an umbrella sky at a spot that suits colorful umbrellas, like right inside the school gate or in the courtyard?
paper flower
Paper flowers made with crepe tissue paper are a classic decoration for school festivals! Many of us have probably tried the process at least once: stacking the tissue, folding it accordion-style, securing the center, and then carefully fluffing it out.
Since it involves delicate work, let’s team up and make them together! With a little extra effort, you can also shape the petals in different ways—give it a try.
It’s also great to arrange them on a backing board to form letters!
Paper circle garland

This garland uses softly textured paper cut into circles, creating the look of a wall covered in blooming flowers.
Fold the paper and cut it into circular shapes, then make circles of the same size in different colors.
Once you’ve made the circles, arrange them while adjusting the quantity to create a gradient effect when hung on the wall, and thread a string through the center using a needle.
After threading, fan the paper out to a consistent width, then secure the center with glue so the shape holds—done! For extra dimension, you can also gently curve each circle bit by bit.



