Interesting homemade inventions There are many different products available on the market for all tastes, but to do something with your own hands is not only interesting, but also economical. Homemade are different: - to solve specific problems - life hacks (witty tricks) - for fun Below is a self-made invention, which belongs to the first category (for solving problems) in our cases, this is a compact simple alarm system that can emit a loud squeak when the door is opened. Homemade alarm system for the door or window In a conventional cigarette lighter, we changed the direction of the fire, using a rod from the handle. The method of experiment and trial can achieve surprising and unusual results. In the image below, fire took the form of a heart. ↓ Invention for fun (trick) Watch the video, there are many examples of homemade products: