Have you ever considered teaching an Ecological Breastfeeding class? Have/Do you enjoy breastfeeding your children and having the added benefit of extended lactation amenorrhea? Maybe there are women in your parish who have never heard about it and it would greatly enhance their breastfeeding relationship and their marriage.
The Catholic Nursing Mothers League has devised a scripted class outline for leaders to use when teaching such a class. Also, another possibility is to visit the nfpandmore.org website blog and look under "ecological breastfeeding." There is a post from just a week or two ago that suggests what material to cover using the NFPI manual.