Actually, the condom idea has been done before. I Love You Because did that and then passed them out in their lobby (don't know if they marketed them other places, though, like to campuses). If I remember right, they were flavored and said something like, "I Love You Because… you wear one".
"I thought that that was just going to be a like one shot deal for me, you know, but they kept talking about it like, 'when we do the production, when we do the production', and I was like, 'yes, yes, when you do the production, cool, I will come and see it'". - John Gallagher Jr. on SA