Since Logitech doesn't provide any spare keycaps for the MX Keys keyboard, and I didn't want to buy a completely new keyboard I decided to try and make a replacement my self.

Once installed it works and feels just like the original.

As for printing it, I used PLA. Its printed in 0.1 DETAIL profile with 0.4mm nozzle and since there's small details I decided to print at 50% speed set directly on the printer. Also, even though it looks like its needed on two of the smaller tabs, I didn't use any supports.