napinläppiä
Napinläppiä refers to a Finnish tradition of placing small, often humorous or personalized objects inside the buttonhole of a jacket or shirt. These objects are typically hidden from casual view, intended as a subtle personal touch or a playful surprise for those who might notice them. The practice is most commonly associated with formal occasions, such as weddings or graduations, where a suit or formal attire is worn.
The items used as napinläppiä can vary widely. Common examples include miniature toys, small pieces of paper
While not a widely known tradition outside of Finland, napinläppiä serves as a charming and discreet form