Create DIY for this, I guessing you are going to need to use 2 shirts, cut the one you'll wear with the side slits. Then cut strips out of Tshirt, sew into the inside of the first shirt at the top then weave and sew to the bottom of shirt.
Sleeve "Flashlight" is short sleeves with ruffles at the bottom and doused. The bottom can be arranged on an elastic band, a cuff, a frill, and so on. Sleeve Pattern obtain apart of the parallel parts of the pattern base (Figure