Mobile Mobile is a Christmas installation at the Lost Boys international office in London. They used 50 old company cellphones to make this huge mobile. Each phone is controlled by a computer and has its own tone. When no one interacts with the sculpture, it plays “Carol of the Bells”. But you can also play with it. You can control it through this website or you can send a tweet with #lbitree and it will react to it. If you’re in London, you can just pop by at their office.