Novelty and souvenir passport stamps are a popular trend popping up around the world.

Here’s why you should think twice before putting one in your official passport.

And really, she’s got the ticket stubs and passport stamps to prove it.

Passport stamps

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“I thought the guy was having a laugh.

“The embassy heard my plight and said that it was rubbish,” she wrote.

“My passport was valid and as such, they couldn’t issue a replacement.

The source of all this frustration: A silly little novelty stamp fromMachu Picchu.

In other words, sorry, but giving yourself a stamp at Machu Picchu simply doesn’t count.

“The Department of State advises U.S. citizens to avoid the use of novelty stamps in the U.S. passport.

However, that doesn’t mean you should probably forgo getting these kinds of novelty stamps altogether.

And this time, it won’t be filled with anything but official stamps.