We cut them to different widths, and some freehand curves on one of them. Then we just laid them down overlapping a bit on our batting and backing and raw-edge appliqued them with decorative stitches. This works best with a walking foot so they don't stretch and distort, but it's very quick and easy. The animals are just fused on. I think they are about 18 inches tall. A quick and fun project!
I'll put a bigger picture of one in too.