In order to make a striped dress out of t-shirts, you will need the following: t-shirt dress, measuring tape or a ruler, pins, scissors, thread, needles, and sequins. Lay your t-shirt down on a flat surface. You will need to decide on the amount of distance you would like between your stripes. Lay the sequin strip over the t-shirt dress. Measure it and pin it in place. Make sure it is even. When you cut it, make sure that you leave a little extra on the ends, because you will need to fold it over in order to avoid fraying. Continue measuring the stripes equidistance apart.