“Necessity is the mother of invention.”
Sometimes, you need something that is either out of your price range or doesn’t even exist yet. So, I build it. Usually, I custom-make instruments for generating a hideous racket. But, I’ve also been known to MacGyver together other contraptions, when needed.
I have occasionally given what I have constructed to friends, when I need to make room at my residence for something else. But, I might put these up for sale at some point in the future, along with other personal items.