Finally ventured into serger land to see what else I could do besides seam finishing. This is a rolled hem (or napkin edge) and it provides a great finish to a raw fabric edge.
Mind you, I do most of my sewing and embroidery experiments on pajama pants because
1) that is what I am usually wearing
2) no need to retain lots of scraps for experiment results
3) easy referral
How many times did I re-thread the looper: 4 times
How many curse words uttered: just 1, but held out for a long note
Emotion at seeing the end result: JOY!