At first I used a pattern to cut out around 16 pieces from the jacket fabric and then sew all of them together. This still wasted a lot of materials

​

I wanted to find a way to use the zippers already on the jackets l. When I brought the jackets home to work on them I started to unstitch the zippers, but then I realized I could use the pockets that already existed.

​

The process I came up with creates 2 fanny packs per jacket, uses only one stitch, and doesn't require any complicated sewing. Here's a gallery of fanny packs from that design.