The latest addition to the Tavistock Square refurbishment is a collection of balls. Granite balls to be precise. Quite why they are there I do not know, not high enough to sit on yet low enough to bark a shin on on dark nights. Perhaps they are humorous representations of the crack rocks popular among some elements of the local community. They are balls anyway.
On close inspection I suspect that the balls are of a granite found only on Ailsa Craig; an island in the Forth of Clyde on the West coast of Scotland. A granite of such fine quality that it is used in the manufacture of curling stones; curling being the 'sport' which imaginatively combines ice, granite, RAF roundels and brooms. It is called 'curling' as a result of its toe curlingly boring nature. Balls!