Pretty funny indeed (Crossposter note: thought it would fit here very well)

(I'm going to set aside the fact that your Very Serious reply to my joke post is off-tone, and actually give you a serious answer.)

If you sent hundreds of posters to a school, you would find some school administrators who were only too happy to have the opportunity to plaster the word "God" on every school wall because they're warped. I acknowledge that's a thing, let's move past it.

Most school administrators either a) hate this shit, or b) don't really give a fuck. If you pulled this prank on one of those schools which--and I really want to stress this--are not on board with the stupid law in the vast majority of cases, you are actually handing them a chance to pull a glorious act of malicious compliance. If I were one of them, I would comply with the letter of the law and wallpaper every wall in the school with these things. Give the kids and the parents a chance to see them, and complain. Who are they complaining to? Not you, your hands are tied, you're just complying with the law. You will explain this very patiently to every single one of them complaining about a school where every surface says "In God we Trust". You're on their side, but the school board and your legislators need to hear about this, because hey, we're on the same team.

You can even go with them, and testify that your staff had to spend hours putting them up, taking time away from school activities. What are you supposed to do? This hurts the children.

School administrators don't make the laws, but they can act in a way that brings the issue to the forefront of everyone's mind. School administrators can give the parents a good reason to take the fight to someone who can actually do something about it.

That might not work, in the end. Texas is run by lunatics, after all. But a huge pile of posters might just be the reason you sleep at night knowing you did what you could.