I bought the printed overall fabric from The Stitchery when Sadie was little, but left it too late. I did make the Duck pair for her.
I added the bit and the bird, so the straps go longer.
The printed fabric has a lining of the same (red) fabric, but I thought an old checked cotton would look nice. Just plugging through, using my vintage fabrics. The buttons are old too, cut from something or other.