2 ½ inch strips of fabric…at least 15 inches long.
For style 1
Measure your diaper width wise.
Cut your strip accordingly.
Sew strip onto one end about ½ inch from the edge using 1/8 inch seam. This leaves a little raw edge that will fray when washed.
--- You can use zig zag stitch to attach this also and give it more character
For style 2
Measure your diaper length wise.
Cut your strip accordingly
Cut your strip in half the long way. You want two skinny long pieces.
Sew one strip to each side of the thicker middle section using 1/8 inch seams.
Jelly roll strips work great for this.