I really liked my black and white top:
But did you notice accidental the bleach spots? Aargh!
So I chucked the whole thing into a plastic tub with some water and a whole lot of bleach for a few hours, agitating it with a plastic handled scrubbing brush now and again. The whole top bleached to match the bleach spots - voila, a new orange top!
It's not perfectly evenly bleached but I don't think anyone will notice when I'm wearing it.