My "favorite" are these pepper grinders, milk frothers etc that have a usb c plug but only work with usb a to c cables since they do not include the two resistors that are needed to enable 900mA on usb c to c cable. And if anyone says cost reduction, SMT resistors are like 0.1 cent or less... Seems just stupid.
My cheap IKEA milk frother just broke. I'd been using it for years, with the same AA batteries I put in when I bought it. It doesn't require a lot of power.
If the replacement requires re-charging, especially with a cable that I don't usually have ready to hand, I shall be disappointed.