What is a one-sentence summary of the following article?
Take the mouth pattern and lay it over your cardboard piece. Then, use your marker to trace the mouth shape onto the cardboard. Next, cut along the marker lines to create your cardboard mouth piece. Lay the sock heel side up on your work surface and position your cardboard mouth piece to see where you will need to glue it. You will need to place it near the toe of the sock and allow a little space around the edges. Once you have decided on the best position for the mouth, apply some hot glue to the back of your cardboard piece and press the cardboard piece onto the sock. Curl up the sock around the cardboard piece's edges to create a raised border. Apply a line of hot glue to the edges as you go. Make sure that you press the sock into the edges and hold for a second. After you have finished creating a border around the cardboard piece, take the mouth pattern and lay it over the red craft foam. Use the marker to trace around the edges of the pattern and then cut it out. Lay the red foam mouth piece over the cardboard piece. Then, apply glue to the back of the red foam mouth piece and secure it to the cardboard piece. Make sure that any remaining marker is facing down. Check the position of the red foam mouth piece before you attach it to the cardboard piece. Use the tongue pattern to trace the tongue piece over the black craft foam. Then, cut out the tongue piece. It should look like a black heart when you are done. Position the tongue piece over the lower portion of the mouth piece. When you have decided where to position your tongue piece, apply glue to the back side of the tongue piece and press it into place.

Summary:
Trace the mouth pattern onto the cardboard. Glue the cardboard to the sock. Create a raised border around the cardboard piece. Cut out the red foam mouth piece. Glue the red foam mouth piece over the cardboard. Create the tongue piece.