We've trawled the web to fine genuinely special objects for this gift guide, from a Cray super-computer, an original Apple Lisa, a calculator used on the Mir space station, some classic Dieter Rams objects and the most beautifully futuristic car ever made, the Citroen SM.You can buy any of the items via the links to the sites where they are listed. If anyone bought me anything from this list I'd be very, very happy.