I have a feeling that you won't need a warranty for Shmuel Linski 'Espresso Solo.' This espresso machine is made out of stone and serves pipping hot java at the touch of a button.
Espresso Solo has all the working parts of a regular espresso machine, with the obvious exception being its stone shell. Shmuel Linski's machine was made out of his desire to bring concrete to the kitchen. The concrete exterior might clash with contemporary kitchen design, but I still think this is an awesome idea.