I spotted this project from Koichi Nakamura
A mother board approach to a Pi Zero cluster
Don't think there's any money in it so really no great urge to chase after the remaining stocks!
I'm not sure that this still holds for "production of the pi zero". It could be that the foundation now has a separate deal with the Sony FAB to make the 'zeros, and that those being produced are being shared between pimoroni, farnell, pihut and a few others......
Other thing is that if you can only buy one at a time then a RPI Zero is actually £10 =£5+5postage and you need to repeat that for each of them
I understand the same Roger. RPF is now actually a manufacturer in it's own right subcontracting to the likes of Sony rather than E14/Farnell/RS doing it for them!