Take one white Tee (shirt) and make sure it has been properly washed or scoured. Cut a length of string that is wider than the widest part of the shirt (sleeve to sleeve) and lay it one the tee near the top of the neckline. Fold the top of the tee over the string and roll the tee until a fairly tight roll has been formed. Carefully pull the two ends of the string together and pull as tight as possible and knot. Place another couple of ties around the roll to secure. Ready to take an indigo bath!