A Yeti Cooler is one of the few devices available in this technology-saturated world that simply does what it says on the tin: It keeps yetis cool.

Just as human beings need fans and air conditioning, yetis also need to keep themselves cool. Since the majority of human beings do not even believe in the yeti, classing the animal as little more than a myth, the market was left wide open for entrepreneur Daniel Keyes.

Keyes recognised that overheating is a common problem in the daily life of the yeti and providing them with a method of keeping cool represented a huge opportunity, particularly as there is no rich-poor gap in yeti society: they are all rich.

Laughed out of the patent office, Keyes made sure he had the last laugh. In a self-absorbed wealth-parade, he arranged for a metric tonne of bank notes to be dropped on the roof of the patent office late one night, rendering the patent office roofless. A point well made.

Despite the huge worldwide distribution of Yeti Coolers, no public member has ever reported to seeing one. Keyes has kept the Siberian showroom location highly classified and only yeti community members have ever been issued with log in details for the online store.

In 2001 a Daily Mirror reporter, dressed as a yeti, infiltrated the initial security parameters of the showroom, but was denied access further after a bank check revealed he did not possess the funds of a yeti. His ejection resulted in severe amnesia, though he is believed to be alive and well, albeit wandering the plains of Siberia aimlessly. Still in costume.