If you fly on KLM Royal Dutch Airlines as a Business Class passenger on an intercontinental flight, you’ll get to choose a tiny Delft Blue house from a cart rolled down the aisle towards the end of the flight.

Don’t pass up the offer.

KLM has been gifting these miniature gin-filled houses representing special buildings in the Netherlands and beyond to business class passengers since the 1950s. And the small buildings have become treasured and collectible souvenirs.

Many travelers are determined to collect them all. Of course, there’s an app to help with that. And some of the very early houses and limited edition issues can fetch quite a lot of money.

Since 1994, the number of houses matches KLM’s age. And each year on October 7, KLM’s birthday, a new house is added to the collection.

This year is KLM’s 106th birthday, and the newest KLM miniature Delft Blue house portrays the former sexton’s residence, Villa Reameau, located next to Lieden’s Pieterskerk church. The Pilgrims stayed here for twelve years before they set sail on the Mayflower to America in 1620. And the building is now the home of the Pilgrim Museum.

Thanks for visiting Stuck at the Airport. Subscribe to get daily travel tidbits. And follow me on Twitter at @hbaskas and Instagram.