singing bins and benches

OK so I confess this isn't precisely on-topic but I just couldn't resist. Cambridge have installed some solar-powered benches and bins in a Square that move around as if in a herd, giggle and sing. How cool would this be to have in your backyard! You can find out more here but here's my favourite bit:

"The benches love to be sat on, and they often take up position in new spaces to make themselves more attractive to potential human sitters. Sometimes, when it rains, they move themselves to drier, shadier areas of the square. To attract potential human sitting folk, they like to form patterns - the benches moving in to shapes in the centre of the piazza. The bins are a little more solitary. When the mood takes them, the furniture like to burst in to song. Sometimes, small clusters gather together and sing a tight six-part harmony, and occasionally, though much more rarely due to their shyness, the bins join in with their sweet soprano voices"

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Originally uploaded by lynetter.