It turns out I sew the same way I cook. Which is to say, I compile tons of ideas and patterns and books, then I just make up my own things and completely ignore all the advice.
I realize one should not attempt to "eyeball it" until one has some degree of competence, but let's face it. If it's going to be a huge ordeal and take a lot of time and effort, it'll never get done. Instead, I bought a scrap of fabric and started making stuff up.
Zaya helped thread the tie through, and Mim sewed a few of the stitches.
I had her pose for this picture after we had started to clean-up, hence the lack of fabric and thread in the machine.
It won't stand up to close scrutiny by a professional, but it'll work for a couple of hyper, costume wearing kids who can't hold still for more than two minutes together. If it's always in motion, who's to know?