We were lucky that our week visiting the grandparents at the seaside coincided with an unbroken run of hot sunny weather. Where we weren’t so lucky, however, was that it also coincided with Bird Girl having her arm in plaster, after having taken her epithet perhaps a little too seriously, and fallen from the climbing frame two weeks beforehand. Under strict instructions from the hospital not to let the cast get wet, and suspecting that sand in a plaster cast would not make for a happy two-year-old, we were struggling to find a way for her to enjoy the beach, but did not want her (or Chief Stick Collector) to miss out completely. And then we hit on Pebble Lookalikes. A game that all members of the family can play, and that doesn’t involve getting wet or sandy.  All you need is a bucket, a keen eye and a lively imagination. The rules? Simple – find as many pebbles as you can that resemble something else. Like spotting shapes in the clouds, but with pebbles. Prizes for …