This was another one of my very-late-night manicures where I'm not 100% sure what I actually did:
So anyway, I waited 'til late to start fiddling with this in the first place, and by the time I gave up on the skittles idea it was even later. I finally just grabbed Zoya Aster, and used that for a base. And - this is the part I'm unsure about - I know I added something else on top of Aster, but what? not sure. It was either Zoya Leia or Sinful Colors Purple Diamond, but I am honestly not at all sure which one. I think it was probably Leia because it made it a little paler and it shimmers pink. But I can't swear to anything except that it's Aster as a base.*
Luckily, also, I've done the NailThins enough times now that that part (i.e., applying the skulls) didn't take too long, once I finally got to that point. I did them on four fingers and it wasn't bad, even though I dropped a couple and with stickers this tiny they're almost invisible on the carpet. I went through about six stickers to get four on my nails because of that - but I did get it done, and then all I had to do was slap on topcoat and I was done.
* For the record, because I do remember this part: I used Nailkale base-coat and Butter London PDQ top-coat.