Edit: WHEW! That one was dead for shipping fast… You can still print them, if you'd like…
When I was back in college, I'd just put random posters on my walls. It didn't matter who it was from or who did it, it was just a random poster, and it was time to just pop it on a wall.
That's what these free No Nuclear Iran posters would be good for, especially with college rolling in for many students: they're conversational pieces to make yourself into an instant intellectual!
Just, uh, don't tell your date that you just liked the colors… Come up with something a little more intelligent?