Download the duck template, print, and cut out the pieces you need.
Glue the duck's head to the flap portion of the paper bag.
Take the duck's body piece and glue it to the main portion of the brown bag.
Place the eyes in the middle of the duck's head and glue them in place.
Spread some glue along the top half of the duck's bill and glue it so it's slightly overlapping the bottom of the duck's eyes and hanging halfway off the head.
Glue the white neck strip slightly below the bottom of the bill, on the brown body.
Position the feathers just underneath the neck strip and glue it in place.