Like clockwork

Sometimes when I go to see my parents my mum will disappear upstairs and reappear with something she has found at the back of a cupboard as she says (it must be a very big cupboard). This week it was a clockwork Milk float which I can remember happily playing with as a child and it has all of it's milk churns. My youngest was with me at the time and it was nice to see him having fun winding it up and letting it run up and down the kitchen floor turning and weaving it's way courtesy of two cams which are underneath turning it left and right, finally grinding to a halt exhausted of power until you wind it back up and then the fun begins again.