DIY tank top - item: scissors, bleach, plain tank top/t-shirt. Dip dye the bottom of the shirt with bleach. Wash it out and let it dry completely. Then cut the part you bleached into thin strips and tie a knot at the ends.
DIY 3 strap bra for summer shirts! Awesome solution to "not show bra strap" at least people would not know it was a bra strap. I actually have a strapless that the washer ruined. I have nothing to lose.