I've had a tunic dress/top for a few years that was always a favourite of mine to wear with jeans. Lately though it hasn't been fitting well, but I didn't want to part with it so kept it aside until I figured out what to do with it.
I decided to cut the top part - from just below the bust - and to use a black tee to make it into a knee length dress. Here it is (sorry, I didn't take a before photo of the top in it's original form):
And with a cardi:
I also lined the skirt part as it was see through, and it actually makes it sit even better with the extra weight. It's so comfortable, and I'm happy with how it worked out. I had been a bit concerned that it wouldn't have much shape to it, but I think it looks fine. I love the fact that I can just switch the belt and accessories to give it a completely different look too.