Open your package of diapers. One at a time, roll the diapers up tight. Start from the front of the diaper and roll it toward the back. Secure with a rubber band. While most diaper cake directions specify using disposable diapers, you can use the same process to make a cloth diaper cake if that is what the parents would prefer. Diaper cake ideas are intended to be flexible so you can adapt the project to fit your needs.