I'm going to post in the crafts forum too, but not sure how many people actually go there on a regular basis.
DH's daughter is having her third baby, and is having a hard time finding affordable infant undies. She has some hand-me-downs from her second child, but is in need of new ones. I mean, she has a very limited budget (is looking for undies that are about 3-4 pairs for $7, which doesn't seem possible). I was going to see if I could find a sewing pattern for making some for her. There's got to be people out there who do this, right? Sew their own EC undies? I would prefer a pattern over just winging it, since my youngest is 5yo and I forget how tiny a baby tush is.