Supplies: loose tank
Pin the doily on the front of the shirt. I got mine thrifted, it was a rectangle table runner. You can look for crochet/lace table runners, or use a round doily too...If the shirt is tight, cut it in half first and sew the doily on the cut seams.
Top stitch on the shirt. I gathered the bottom since the shirt was longer then the doily...that way it is long in the back still.
See the gathered pleats? Do this by folding/sewing pleats near the end so it matches up to the doily. Then cut the front piece off so the front is sheer.