Try the shirt on your little gal. If she's swimming in the shirt, pin along the outer edges to mark a better edge. If she's too wiggly to insert sewing pins safely, bribe her to stay as still as she can, draw around the outline of her body with tailor's chalk and pin it once you've taken it off her.

Remove the shirt carefully and sew new seam lines for her dress by turning the shirt inside out and sewing a straight stitch down both sides and underneath each arm. Try the dress on her again to make sure it fits. If it does, cut off the excess fabric. If not, rip out the new seam and try again. Maybe you thought you weren't a crafty mama before, but look who's tailoring clothes like a pro now!

Sew a row of red buttons in a straight line down the front center of the newly converted T-shirt dress or the child's T-shirt dress to make it look like a button-up nurse dress.

Unravel your spool of red ribbon. Pin ribbon around each sleeve opening and then sew it to the dress using a straight stitch.

Cut two pieces of ribbon, each about 2 inches long. Arrange the ribbons into a cross shape and pin the cross over the chest of the dress. Sew these in place.

Cut two more pieces of ribbon, each about 3 inches long. Pin one near the left side and one near the right side on the front of the dress at about hip level and then sew the ribbons to the dress to make faux pockets.

Cut two diamond shapes from white felt, each about 5 inches long by 4 inches wide.

Stack one on top of the other and lay them with one long side in front of you. Cut off the point directly in front of you from both layers to form the flat bottom of the nurse hat. Round the remaining three points of the diamond shapes.

Lay the top center of the headband on top of the flat edge of one piece of felt. Lay the other felt piece on top and sew along the bottom flat edges. Sew around the outer edges of the felt to join them together and keep the nurse hat on the headband.

Unravel some red ribbon and fold it in half lengthwise. Iron along the crease to keep the ribbon folded.

Sandwich the outer edges of the felt in between the folded ribbon and pin the ribbon all the way around the outside of the felt nurse hat. Sew the ribbon in place.

Cut two more pieces of ribbon, each about 2 inches long. Arrange the ribbon pieces into a cross and sew these onto the front center of the nurse hat. That's it -- you've just completed an entire nurse costume for your kiddo.