Cables

you may already own one

it use the same power cable type as my old dvdplayer my old playstation 2 and some old portable radio the previous owners left in the garage

so I'd say they are a very common industrial std. and most supermarkets and radio stores and the likes would carry them

Apple will not sell these parts separately. You will have to shop for a generic C7 power cable in a UK electronics store, or for an adapter.

It would be easier and less hassle to just purchase a plug adapter.