UPDATED VERSION 02_01 (Full Set better organized by Lines): 
I made my own full set of keycaps for my NuPhy Air 75 keyboard. They may fit other keyboards, but I only tested them on the NuPhy Air 75 V1 and V2. There are options with translucent labels and also dual color, so you can have a transparent bar at the top to see the backlight LED. Printed in PLA at 0.16 using the Super Tack plate, and it worked well.
The spacebar is included, but it may need some extra polishing on the model since it got stuck while I was testing it. All the other keys worked nicely in my tests.
For the translucent part, I could not use Bamboo filaments because they do not have PLA clear as an option at the date of this posting.