Loud horn made of plastic bottles

Hello dear readers and the inhabitants of our site!
In this article, Thomas Kim, YouTube author, will tell you how to make a loud horn from a plastic bottle.

This homemade product is extremely simple to manufacture, and even a child will cope with it. Tools and materials required a minimum.

Materials
- Plastic bottles
- Hard film.

Instruments, used by the author.
- glue gun
- vernier caliper
- scissors
-
- 27 mm
- Pump for mattresses.

Manufacturing process.
So, the author picked up a small plastic bottle, and measured the diameter of its neck. It turned out about 27 mm.

He then drilled a hole in the center of the bottom with a 27 mm diameter Forstner drill.

Then he cut the bottle in half.

And connected the two blanks, inserting the neck into the hole.

Now you need to cut off the excess bottle so that the neck protrudes 1-2 mm above the edge of the cut.

Then the joint is sealed with a glue gun.

The next step, the author makes a membrane. It just cuts a square out of a rustling package. This film is used for decoration of bouquets. The size of the square should be larger than the diameter of the bottle.

Using scissors, the author made a hole for the dulce. As him, he uses an ordinary tube. Having inserted a tube into the hole, the joint is glued.

Glues one corner of the film, then, pulling the film, fixes the second corner diagonally. The membrane should be glued along the entire perimeter tightly enough, and well stretched. The same can be done with tape or tape.

That's all, the first dudelka is ready!

In exactly the same way he makes a tin from a second bottle of a larger diameter. She will have a different tonality.

Now you can attach a small pump for mattresses, or a pear. And put as a signal on bike.

Her sound is very original. You can tease the birds in the forest.

And even make a children's "alarm" that responds to the opening of a window or door.
Of course, you can put this inside the refrigerator. In the middle of the night it will be clear who went to the hamster in the kitchen =)

Thanks to the author for a simple but interesting children's toy!

All good mood, good luck, and interesting ideas!