My poncho for my MIL?

I just love this poncho that Lizzi designed. I was thinking about a similar design for my mother-in-law but actually now that I think about it maybe my idea is completely different! I want to do it in a worsted weight Alpaca on larger than normal needles for an airy fabric, with a cable design up the front bordered by YOs. The shoulders might also have YOs. Hmmm. Still, Lizzi's given me some ideas! I don't really want to do fringe on the bottom, though, so I'll have to think of a way to edge it without having it roll. hmmm. Ideas? Maybe I can pick up stitches along the edge and do a border? But not lace, of course.