I had a blue cotton oxford that I loved, which was my Dad's but unflattering in it's original state on me, which I used this tutorial for. In just over an hour of leisurely hand-sewing-whilst-box-setting-pace, I had a gorgeous new summer top! (no camera to hand at the moment...)
I shall definitely be using this method many times over, to overcome my lack of summer tops and no funds situation. Plus, bonus is that the shape is very flattering for my figure!