For 56 years, KLM has handed out a coveted souvenir: small ceramic replicas of historically significant houses filled with Dutch gin and topped with a cork. Many people can't get enough of them.

Perhaps the most well-known building in Amsterdam, it was made to scale in Delft Blue by Bols, the creator of Dutch gin. 'In the 1970s and 1980s, all bridal couples who flew KLM received one as a ...