What a great idea! Original pinner said: "New idea I had with my infamous Sharpie skills! Just grab some cheap off-brand of Vans from either Walmart, Kmart or Payless and go-to-town with the Sharpies! The designs are endless.
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.