If only I had a cnc shop...
I mean, it wouldn't be THAT hard to make something that looked good, right? I mean, if it just had those three insert things on top and screw holes in the bottom to fit in like the OEM grilles... then have a little ring piece thing around it to cover up that lip and define the shape. Then since it would have an exact position as to where it would fit EVERY TIME, unlike the ziptie install, you could make the perforation exact and even on each side. Plus it would be a way easier install. Two screws per grille and you're done.
Why doesn't anyone sell something like that? Maybe the quality I'm looking for just doesn't exist...