I can say from personal experience the Ergobaby carriers are the most comfortable around, and I think this Umba print from guest designer Christy Turlington Burns would fit Fergie's eclectic style; Ergobaby.com.
You know what's cuter than a baby in sunglasses? Nothing, nothing is cuter than a baby in sunglasses, which is why Baby Duhamel needs a pair of Babiators; Babiators.com.
Whether he decides to follow in mom and dad's footsteps or not, their little guy is certainly already a star in his parents' book; Gap.com.
4moms Origami Stroller is, quite frankly, bad ass and perfect for a mom-on-the-go like Fergie. Power folding means it opens and closes itself with the press of a button, generators in the rear wheels charge the stroller while you walk and can even charge your cell phone! An LCD dashboard includes a thermometer, speedometer, plus trip and lifetime odometers. I kind of expect this thing to blast off into space, too, but we can't have everything, not yet anyway; 4moms.com.
A style maven like Fergie Ferg needs a designer baby bag, and this stunning Burberry Olympia quilted diaper bag is perfection; Nordstrom.com.
I feel like Josh is going to be the type of dad who's comfortable cruising around town with baby, so he'll need a tote, too, like the Storksak Jamie leather diaper bag; Nordstrom.com.
Babies love keys, remote controls, cell phones...anything belonging to an adult that could cramp their day if lost. These B. FunKeys from B. toys are the closest thing to real keys you'll find fit for a baby and also provide sound effects as though the tiny tot is actually locking and unlocking the car doors; Target.com.