I picked several of these up on a trip to Mexico before I got into ukuleles. They are cotton woven belts, soft, colorful and I think really happy and fun, just like your uke. I tie a round shoe lace to one end to tie around the headstock between the tuners, the other end I tie a piece of leather in which I have cut a hole and a slice to go over the button of the MiSi pickup, or any other button you have. You can adjust the length to what you want by just folding a section and sewing it together. if you have a friend headed to Mexico have him pick up a few, they only cost a buck or two and you see them everywhere. If you get more than you need send them to me. I want some more, I love them.
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