Learn how to make a diaper cake — a baby shower gift that doubles as a decor element. Evite’s in-house party stylist, Jessica Bailey, shows you how. CORRECTION: We used a total of 59 diapers. UPDATE: The coupon is no longer available. Also, we used size 1 diapers, just incase the newborn turned out to weigh a little more. It’s a safer bet to buy size 1 for new moms.