I have a similar poncho and couldn't resist designing a mini-me version. The ribbon ties I bought online were meant to be used as ties on handbags and it was too long so I cut one in half and used them like that. Since I bought flower patterned ones that were narrower and exactly what I wanted. Now it can be interchangeable. Knitted flat except the neck on circular needles, but that can be easily made with straight needles and joined at the end.