Hjartarson is founder and owner of the Icelandic Phallological Museum, which offers visitors from around the world a close-up look at the long and the short of the male reproductive organ.

His collection, which began in 1974 with a single bull's penis that looked something like a riding crop, now boasts 261 preserved members from 90 species.

The largest, from a sperm whale, is 70 kg (154 lb) and 1.7 meters (5.58 ft) long. The smallest, a hamster penis bone, is just 2 mm and must be viewed through a magnifying glass.

One species conspicuous by its absence is homo sapiens, but that may soon be rectified since a German, an American, an Icelander and a Briton have promised to donate their organs after death, according to certificates on display.

Hjartarson said the Icelandic donor, a 93-year-old from nearby Akureyri, was a womanizer in his youth who thought having his penis in the collection might bring him eternal fame.

But vanity may make him rethink the offer.  Continued...