For upper-grade boys! Simple yet awesome craft project [Don’t call it lazy]
I want to make something for my summer break craft project that makes people say “Wow!” but I’d like to avoid anything too difficult.
Great news for upper-elementary school boys! In this article, we introduce intriguing craft projects with clever mechanisms you can build using everyday materials.
Even creations that look complex—like a fountain where water seems to flow upward or a spinning top that floats in midair—are actually surprisingly easy to make.
Once you finish, you can submit your project with an explanation of how it works and use it as a science project, too.
Go ahead and try these fun crafts that apply principles of physics!
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Crafts to learn how things work (41–50)
Balloon pistol

You can play a fun target game using the power of a balloon! Use decorative pom-poms as the balls.
First, cut a balloon around the middle and attach it to a paper towel roll core.
Secure it with a rubber band so it won’t come off, and it’s ready! Put the decorative balls inside, pull back the balloon, and launch the balls to play.
Make the targets out of milk cartons.
It’s also recommended to decorate the launcher and shape it like a cool pistol using cardboard or any decorations you like.
Have fun with your own original ideas!
Remaking a 100-yen shop clock
https://www.tiktok.com/@nantomokuzai/video/7265645972984827143The part you can see from the back of a table clock or wall clock—the section with the battery compartment and the knob for setting the time—is called the movement.
You could say it’s the heart of the clock.
In fact, clock movements are sold on their own at 100-yen shops and home improvement stores, and you can use them to make your own original clock! If you’re good at woodworking, try starting from scratch by buying a wooden board and cutting a groove to fit the movement.
If that’s not your strong suit, there are also assembly kits with pre-cut grooves available, so you can use those instead.
A piggy bank that helps you save while having fun
Let’s use Daiso’s 3-tier drawer case to make a fun, game-like piggy bank over summer break.
First, flip the second and third drawers upside down and reassemble them so the flat sides face the front.
Next, cut corrugated plastic (plastic cardboard) into any shapes you like and attach it to the outside of the drawers to create a design that looks great.
Inside, apply double-sided tape so coins pause partway and drop slowly as they travel down.
With a piggy bank you made yourself, saving money becomes fun and easier to turn into a habit.
It’s a unique, practical idea that can change your everyday life through creativity and ingenuity.
cool pen holder

Let me introduce a very handy and stylish pen holder.
Prepare a wooden box, wooden boards, an interior mesh frame, paint, a brush, glue, and sandpaper, and let’s get started.
Cut the wooden boards, paint them, and glue them together.
Glue on the interior mesh frame as well.
Once it’s dry, it’s complete.
This pen holder makes the contents easy to see and offers great ventilation—give it a try! Adding illustrations or decorations to give it a personal touch will make it even more wonderful.
Original handmade watch

When you go to a 100-yen shop or a handmade goods store, you can find just the clock movement for sale.
Let’s use that to make your own original clock! For the base of the clock, use a photo frame or a plastic plate.
Once you decide where to fix the movement, drill a hole.
Tighten the nut to secure the movement, and then decorate it to your liking.
Paint it, attach parts, or add glitter to make it sparkle—depending on your ideas, you’ll end up with a clock full of originality!
Bird call making

As a craft project perfect for children who love nature observation, I recommend making a bird call.
Prepare a hand-sized wooden branch and drill a small hole in the center.
Screw in a metal part called an eye nut, and when you twist it so the wood and metal rub against each other, it produces a sound like birdsong.
Real birds may sometimes respond to this sound, so trying it out in a park after making it is part of the fun.
The volume and pitch change depending on the type of wood and the depth of the hole, so by experimenting and recording the differences, you can enhance the quality of the project as an independent study.
It’s a hands-on idea that lets kids connect with nature while sparking curiosity about how sound works.
A one-of-a-kind toy clock in the world

The idea is to make a clock using a clock movement and a board, then attach various toys to it.
You can get a clock movement at a 100-yen shop or a handmade goods store, and you can buy the board for the clock face at a home improvement store.
First, draw diagonal lines on the board to find the center point, and mark where to drill the hole for the movement.
Next, use a protractor to decide where to place the numbers on the clock.
After drilling the hole and painting if you like, it’s time to decorate the face.
Use a hot glue gun to attach the toys however you like.
Finally, secure the clock movement in the hole, and you’re done.
Arrange your favorite toys with style and create a wonderful clock!



