Making a tenkeyless from a fullsize keyboard by cutting it in half
Some 10 years ago I had a Cherry G80-3000 full-size keyboard that I wanted to be a tenkeyless. So I cut the keyboard in two parts and made it work again. Madness, but it worked.
The small board that was above the numpad has all the smarts for the whole keyboard, so I had to follow the traces it was attached to and find a new location to wire it in at. Luckily the big PCB I cut in half is pretty simple so I could just visually see where everything went and run a new wire there.
Nice!! Super cool!
I tried to do something like that with a modern keyboard, but the "PCB" was just three pieces of plastic sheeting and the brains was not something that can be easily altered. Still haven't given up, though, and you have me more motivation.