Iron the fusible interfacing to the back of each piece. Now it is time to tack down all those little stripes. I used YLI Smoke invisible thread on top and Bottom Line thread in the bobbin. (I didn't want the stitching to take over the already busy zebra.) Then I started sewing long curved lines over the stripes, echoing about a half-inch. I ignored the angles of the fused stripes and just made my own path across them.