This first picture is of a pair of corduroys that one of my clients had me refashion as a skirt. The corduroys no longer fit her (too big in places) and so we found some beautiful contrast corduroy fabric by Valori Wells and inserted it in the front and sides. I love how the skirt has an almost mermaid shape to it.
Jeans or corduroys to skirt:
I have an old old maxi-skirt I want to try this with - I love the sleeves! Maxi-skirt to gypsy dress (this picture from boredandcrafty):
And I think this one is so clever! Long skirt to rockabilly mini (from here):