That’s funny. I’ve made several <5m I call them ‘unstension’ cords and jokingly say “look, this extension lead is so short, when you plug it in the cord actually gets shorter”.

Dead appliances have their cords cut off and chucked in a box, when I need a few inches more length I put a female plug on the other end. Either that or I open the device and put a longer cord on it, but that’s extra effort.