Where can I find a cable for one of these?

We need a cable that goes from a standard UK 3-pin mains socket to the kind of connector shown on the left. I've just received a replacement power unit for our laptops, but they didn't come with the power connector, which is a pain.

Update: Wow, you lot are swift! It is an IEC 320 C5. Have ordered from Amazon - less than £4 including postage. Many thanks all!

Three sided football

I am filled with a sudden and inexplicable urge to organise a game of three sided football.

It seems to me that it would make a great spectator sport - there would always be a lot of goals because many battles will be two teams against one, and whoever was ahead (had the least goals) would always be under most pressure...