You are going to start off by taking 2 strips of different colors and place right sides together and stitch along the top (you can finish each edge with a Serged or Zig
Zag stitch as you go or when you have attached all the strips of fabric together).
I just cut 8» circles and then I hem them with bias tape and then on the underside I zig -
zag very narrow elastic about 1» from the edge (pulling it toward you
as you
stitch... then it will gather up when you are finished).