The Line Saver: To keep your eyeliner in place, sweep loose or pressed powder right under the eye liner on your bottom lid. It creates somewhat of a barrier, preventing your eyeliner from traveling downward.
DIY Tee to Cut Out Bandeau Top Tutorial from Bleached Faded here. Really easy tutorial although Id probably sew wear she has used fabric glue. I would also again wear a tank top or something under it so it's more modest.