I love, love, love this cardigan.
Its the Circle Top by Papercut Patterns.
Made up in a linen cotton blend (I think!) from the Fabric Warehouse purchased during their sale this year. I sized up the pattern to XL but feel I needn't have bothered. Its pretty much a circle with two arms and a LOT of binding!
Here's it with an Arabian Nights dress up costume - I went as an Arabian Night (black dress with LED lights sewn in!).
I love the cardi, partly because as its black, it fits in my wardrobe well but mostly because it looks as good or better than something I would buy. I really love the finish the overlocker gives and this definitely something I would have purchased.