Cut the opening flaps from the bottom of the head cardboard box.
Cut the backside out of the body cardboard box. Next, cut the neck and arm holes out.
Using masking/duct tape, tape all of the edges and openings on both boxes.
Using a light spray paint, spray the outer surface areas of both boxes; all sides. This will lay a good primer for when you administer the colored acrylic paint. Allow to dry for 1 hour.
Next, Use a 12 Inch ruler and a pencil to draw 1 Inch squares on all outer sides of each box.
On the front side of the face cardboard box, draw the location of where the black eyes and mouth of the creeper will go. Next, within those black markings, draw smaller boxes for the eyes and mouth that your child will use to see, talk and breathe out of. Cut these smaller boxes out with scissors.
Using masking/duct tape, tape all of the edges of the eyes and mouth openings.
Paint the creeper's eyes and mouth black with acrylic paint.
In no particular order (literally random), paint the 1 inch squares with 4 different shades of green until the squares have been painted. Allow to dry and your costume is complete!