Here's the gist...
Stuff you need:
Pellon / Interfacing
Rotary Pinking Cutter
1. Iron fabric to Pellon. Create a flag template from paper to desired shape. (isosceles triangle measuring 2.5″ wide and 4″ tall). Using your template as a guide, cut out each piece with rotary pinking shears. Trim off excess fabric at the top.
2. Once all the pieces are cut out, line them up in the order that you’d like them to appear. (random looks cool, but it helps to get an idea of where each flag might hang.)
3. Leave a little extra at each end for hanging, stitch each piece to the satin ribbon using a sewing machine. For flexibility leave half an inch between each flag. That’s it! Now you have a custom garland of your own!