I had some visitors last week-end of the 5 and 2 year-old variety. Once said 5 year old was strapped safely into Uncle ---'s car, on his best behaviour, we started talking about houses after he saw a big stone house that 'looked like a church'.

'What else do they make houses out of?'

'Wood' - Uncle ---? 'Metal'. Yes, very good.

Can anyone think of anything else? A moment's pause from 5 year old.  'Eyeballs.' Of course. 'But you'd needs lots of eyeballs, maybe a million.' Indeed you would.

The imagination of children.

eyeball