At Sam and Rosie's wedding in The Return of the King, Pippin catches Rosie's bouquet.
The moment occurs near the end of Peter Jackson's 2003 film, after Samwise Gamgee and Rosie Cotton are married in the Shire. Rosie throws her bouquet into the gathered crowd, and it lands with Peregrin Took, better known as Pippin. He looks embarrassed before noticing a nearby hobbit woman, turning the familiar wedding custom into a small romantic joke.
The scene is part of the film's extended closing sequence, which shows the hobbits returning home after the destruction of the One Ring. Sam's marriage to Rosie marks his return to ordinary Shire life, while Frodo remains troubled by his experiences and prepares to leave Middle-earth. The bouquet gag is a film detail rather than a major event from Tolkien's main narrative, so it is easy to overlook amid the story's emotional ending.