K doing the slow-exhalation-when-will-my-shirt-be-done thing. I hacked the sleeves shorter. A little longer than Iâll need in the finished product, but I needed something to hold on to as I pull this under the presser foot. Two strips of 1/4â³ elastic the length I want the new sleeves to be. Turn the shirt inside-out. I ironed a crease into the shirt sleeves so that Iâd have a line to follow while stitching. You could also use a water soluble pen to mark it. The machine part is kinda impossible to photograph without three hands.