To make a sock monkey, run through the following steps.
Turn the socks inside out and lay them out on a flat surface. Lay one sock out with the heel facing upwards and the other sideways with the heel facing sideways.
Mark a line down the center of the top of the sock with the heel facing upward. Stop the line at the heel. Sew down either side of the line with a sewing machine and sew rounded edges at the ends of the seams. Cut down the line and turn the sock right side out. Stuff the sock with polyester stuffing through the space between the legs and slipstitch it closed.
Cut out the arms, tail and ears from the remaining sock. Cut out the heel of the sock for the mouth. Sew each of the limbs with the right sides together and turn right side out. Stuff the limbs.
Slip stitch the limbs onto the body. Turn the edges under the mouthpiece and pin it to the monkey. Slipstitch the mouth in place, leaving some space unstitched at the end. Stuff the mouthpiece and slip stitch the remaining part of the seam closed.
Sew on two buttons to make eyes. Use embroidery thread to create a nose and a mouth.