The first thing you’ll need to decide when making the diaper cake is how large it is going to be and what size diapers you will be using. A three tier cake is cute and can use a different size diaper for each level, but you could also use the same size for all of it. If you are using different sized diaper for each layer you will need to purchase a large bag of each size. If you are using all the same sized diaper, then you’ll need three large bags or one super sized box (200+ count).
Step one: Roll all the diapers like a burrito as tightly as you can. Use tape or rubber bands to keep them rolled.
Step two: If you purchased the box of diapers you can use it, if not get another cardboard source. Cut three circles: the largest should be 18-20 inches in diameter, cut another circle 3 inches smaller, and a third circle three inches smaller than that.
Step three: Arrange the rolled diapers on the largest cardboard circle starting at the center and working your way outward. To maintain stability use rubber bands at intervals. Once the edge of the cardboard circle is reached tie the diapers together with a ribbon. This is not only holds the cake together the ribbon is a pretty touch. Repeat this process with the other two layers.
Step four: Stack the layers one on top of the other and decorate the diaper cake with the extras you have gathered. It is an especially nice tough to add a cake topper of some kind: a doll, stuffed bear or a framed photo from the ultrasound.
Step five: Give your confection to the happy mother to be and enjoy the look on her face.