I created this diaper cake and to make it even more unique instead of using the standard paper towel roll or baby bottle for the center I used a bottle of champagne for the new parents to toast to the birth of their new baby.
You will need about 40-50 diapers depending on the size you use. Items to decorate like small toys and ribbon and fabric to make burp cloths and ribbon blanket (optional) Cardboard cut in a circle or cake plate.
First I hot glued the champagne to the center of the cake plate. I bought a rose champagne from Trader Joes for $5.
Next add the first row of diapers by using a large rubber band. Put the rubber band around the bottle and add diapers around it. You can roll and rubber band each diaper but I find that to be more time consuming. Add enough diapers to make it the size you want. I used about 30 size 3 diapers.
Add the next layer by repeating the last step. I used about 10 diapers for the second layer.
I made burp cloths to cover the layers but you can use receiving blankets too or just cover with ribbon. Here are directions for burp cloths.
Wrap ribbon around each layer and secure with a safety pin. This will keep the burp cloths in place.
The top layer is a ribbon blanket I made. I folded the blanket into thirds and wrapped it around the top of the champagne bottle. You may also use another layer of diapers. Directions for a quilt style ribbon blanket here. To make this ribbon blanket I used two 15in square pieces of fabric (1 from the style of the burp cloths I made and another piece of scrap minky I had) and made it this way.
Last decorate the cake. I used a rattle/teether, car seat toy and wrist rattle to cover the safety pins (all from Babies R Us) I included lotion from the parents' registry for the topper. I have seen a cute cake made with Sophie the giraffe as the topper but that was already purchased from their registry.