In the world of heavy automation and mass production it’s sometimes easy to forget that there’s a person around at every stage. But sometimes a nice little reminder finds its way through. A while back I bought a Raspberry Pi universal power supply. It’s universal in that it comes with a selection of mains prongs which clip on.
There’s a disposable plastic cover for the area in which they clip on, and on the inside of the cover, some person wrote the initials “bc” by hand with a die grinder, between the ejector pin holes:
It’s probably a little messy because it’s hard to write with a die grinder and they had to mirror-write it so it looked right after moulding.