Men's tank, re-purposed with ruffles on the top and an old dress bottom sewn on for the skirt.would be awesome using a Goodwill dress for the bottom. In fact, now that I think of it, any Goodwill dress could become a boho skirt this way!
Elastic Waist Tank Dress Tutorial
Elastic Waist Tank Dress: Do-able step-by-step tutorial over at thinkingcloset.com. On my to-make list!