Nicole Richie played host to a number of celebrity parents and their kids at a Winter Wonderland event with Baby2Baby and Huggies in LA on Saturday. Nicole didn't bring her two little ones, Harlow and Sparrow, to the bash, but Rachel Zoe and Rodger Berman did pose with their son, Skyler. The stylish 7-month-old was in all gray, which made his big blue eyes stand out. Rachel didn't break out Skyler's adorable Gucci tuxedo this time, though it's going to be pretty adorable when he does get black-tie formal. Rebecca Gayheart, who is pregnant with her second baby, joined husband Eric Dane and their first daughter, Billie, while Busy Philipps got crafty with tuxedo-shirt-wearing Birdie. Cash Warren brought Honor to get her face painted while his wife, Jessica Alba, traveled back from Milan with their younger baby, Haven.