Remember when you first saw the Human Rights Campaign\u0027s logo—the royal blue square with the bold, yellow equals sign that has become synonymous with LGBT rights since 1995, when it was created by the design firm Stone Yamashita? It was everywhere—car bumpers, school binders, even tattoos (just Google it).\u000A\u000AThat little blue square got a lot more famous this week, when HRC\u0027s director of marketing, Anastasia Khoo, had the idea to turn it pink and red, \u0022the color of love,\u0022 in support of the two historic marriage equality cases going before the Supreme Court. At 1 P.M. on Monday, March 25, HRC changed its Facebook profile image and asked its followers to do the same. The word spread, celebrities and major organizations joined in, and now Khoo estimates that Facebook participation is \u0022in the millions.\u0022\u000A\u000AIt wasn\u0027t long before fans started riffing on the logo with their own take on the symbol of love. Here\u0027s a slideshow of our 30 favorites.