If you're a fan of The Lord of the Rings or Fallout, these 6 TUBBZ vinyl duck collectibles are perfect for your collection.

But these are far from the only collectibles available above the clouds. From playing cards to rubber ducks, there are plenty of in-cabin souvenirs with cult status. Take those KLM ceramics.

An inflatable rubber duck that floated in Hong Kong’s Victoria Harbour a decade ago will return to the city in mid-June, and not only has it grown but it is bringing a friend. The two yellow ...