I've been a bit disappointed in trying to find these caps. For quite a while now I have been looking for Cherry profile blank thick PBT blanks.
At first I tried buying from geekkeys, which went fine, except for the fact that I received gray-colored caps:
http://i.imgur.com/mhxzQ1b.jpgI've also made a small album of the keys I received, just to make sure that I'm not just insane:
http://imgur.com/a/2qeN7If you notice, the keys in the bottom picture are black, except for the one spacebar, which matches the rest of the caps in the set, which I find odd. This says to me that the gray I received isn't just what they use for black, but that there's a difference between these gray caps and their black caps.
Unfortunately, their service hasn't been too keen on helping me somewhat quickly (I'm probably just too impatient, but it's been a couple weeks), so I decided to try a different brand.
After buying enjoypbt black blanks and receiving caps in the same gray color, I returned them.
I believe that taobao and maxkeyboards have sets, but they're OEM profile, rather than the Cherry profile that I'm trying to find.
Does anyone know of a working source of this type of caps?