(sarcasm)
I think the the FFRF should do just that. But they are too timid to do so on their own. Instead I think that it should be done for them, on their behalf.
Just slight modifications to their posters, then repost them. Like this, based on their real posters:
“Reason. Equality. Doing good. — All without Allah.”
“As my ancestors are free from slavery, I am free from the slavery of Islam.” — Butterfly McQueen
“Praise Darwin. Evolve Beyond Islam.”
“Imagine no Islam.”
“I believe in humanity, not Islam.”
“Islam doesn’t need rights. People do.”
“Islam is just a fairy tale.”
“I gave up being a Muslim, and I’ve never been happier!”
“Studying the Koran made me an Atheist.”
“Islam is garbage. Mohammed is a lie.”
I like the way you think. I would love for islamists and atheists go at it.