magnificent Seville orange bought from the inspiring market in Madrid. Attractive colour, good to hold with its perfect dimpled surface and oh so tempting. But tricky to get into without a bit of mess and then everyone wants a bit.
...beach. From a distance, it's solid and impenetrable. It needs a bit of scuffing with your trainers and scrabbling around on your knees to notice that - right up close - it's pretty granular and can be re-shaped into whatever you fancy. Building sand-castles as a kid was very much practice for the real world.