We feature adorable, incredibly detailed kids' parties every week -- and tend to fall in love with new ones on a daily basis -- so picking our favorites of 2012 was no easy task. After much deliberation, we finally narrowed it down to 15 of the cutest, craziest (as in, how do they come up with stuff?!) birthday parties of the year. From retro-inspired superhero, big-city, and transportation bashes to the girliest parties around (we apologize in advance for the abundance of pink; perhaps 2013 will be the year of blue?), our picks for the top parties of 2012 all have one thing in common: very happy kids!