Work asked me to do something for their Christmas card. I work for an Interactive Agency.
To cut a long story short, after a company-wide upgrade the agency had a lot of old mobiles gathering dust. We took these, built and hoisted a gigantic interactive chandelier/mobile that plays christmas jingles in our reception.
To add a little xmas spice to the mix, anyone can go online and enjoy annoying the hell out of people waiting around in the reception, by playing the thing live from their web browser: xmas.lbi.co.uk
Details on how we made it and some behind the scenes content are available on my blog: theophane.co.uk/mobile-mobile