This is probably a longshot, but the character Santana from Glee has worn a couple of similar dresses that I really like, and I'm hoping someone might know where I could get hold of one! 
I'll try to describe them...
From the front they look like a very simple fitted lycra mini dress, mid thigh length. One dress was black and blue stripes, and the other (worn in the first scene of last night's episode) was green and black stripes. On the back they have ruffles on the bum and skirt, giving a kind of bustle effect.
I'm not making them sound particularly flattering, but they looked really good on.
Any ideas?