How to mount parking lamps to Grille w/ no studs

[TKCR]

As the title says, I have searched and read past posts, but I can’t find exactly what I’m looking for. I know I have seen something about this subject in the past.
85-87 grilles that do not have the studs to mount the parking lamps. How are you mounting them? I need pics too.
And before anyone’s says, I know all about the different grilles, that the double stack has studs. I have a friend that Custom built a grille, using the one that doesn’t have the studs. And we are trying to see how other people mounted the parking lamps. Here is a pic of the grille.