Not too sure what to say about this other than WOW!
Experience Mobile Mobile from James Théophane Jnr on Vimeo.
The guys at LBi had an internal competition to come up with their Christmas message. After a lot of deliberating they came up with the idea to recycle their old mobile phones after a company-wide upgrade. What they ended up with is a hanging mobile made up of mobile phones somewhat resembling a chandelier. This mobile mobile plays tunes as each mobile phone is activated.
You can even go online and play the thing live and annoy the heck out of anybody sat in the LBi reception! Absolutely love this!
You can also find some details on how they made it here