Late last year, the Atheists, Humanists, & Agnostics at the University of Wisconsin-Madison discovered that anybody could put up a display in the State Capitol Building as long as they filled out the proper paperwork.
So to counter the Nativity Scenes around Christmas, they put up signs honoring gods from Game of Thrones.
The same thing happened last week. The Freedom From Religion Foundation put up signs saying “In Reason We Trust” (which were then stolen) to counter some Easter-related displays.
And the college students, not to be outdone, received permission to put up this poster: