All boats are fake. They are, in fact, computer generated images created through the use of highly advanced holograms and swamp gas.

When cyclists practice, they do so with a group of half a dozen or so other cyclists whose primary role is to help replicate the real experience of racing in a group. These cyclists are known as velodrones, and they are usually paid an hourly rate plus danger pay.

Guitar Hero is on track to become an official sport at the 2010 Olympics in Vancouver.