Since You Won’t Be Invited to Harper Beckham’s First Birthday Party ...

Athlete David Beckham and fashion designer Victoria Beckham arrive at the 2012 Vanity Fair Oscar Party hosted by Graydon Carter at Sunset Tower on February 26, 2012 in West Hollywood, California. Photo: John Shearer/WireImage

A gushing InStyle U.K. reports: "It's thought that the couple have gone for a pink theme, with bouncy castles, pony rides, cuddly toys — and even special pink bunnies."