I recently inherited a serger from my grandmother who died a year ago. Also recently, my husband cleaned out his part of the closet. In the process, he pulled out a bunch of t-shirts that he didn't want anymore, so I thought I'd pull out my "new" serger and see if I could make those shirts into girls' nightgowns! I just traced shirts that fit my girls and came up with a few:
This "small" t-shirt was way too big for my 5 year old, so I made it smaller.