Gwen Stefani sure knows how to roll in style. The mom-of-two, rocker and creative director of L.A.M.B. has signed and designed two customized Bugaboo Cameleons. While Kingston and Zuma get to ride in one, the other is being auctioned off on ebay.com starting today to celebrate World AIDS Day. Get all the deets in our Moms & Babies section.