The foldable plug by Min-Kyu Choi.
The Mac Book Air is the thinnest laptop around, and yet it still uses the big and cumbersome British plug. Annoyed by this, Min-Kyu Choi redesigned the traditional British plug to give it a sleek new look only measuring 10mm wide.
I had a folding international plug once which wasn't that sturdy and liked to electrocute me.... Thankfully Min-Kyu Choi's folding plug looks quite sturdy! I hope it hits off... I'm tired of big British plugs...
Click the picture for more information on his design, plus great initial sketches etc. (I wish he hadve cleaned his fingernails before shooting the pictures though... ;/ )