Almost all airlines do not permit such items in the cabin, but some allow them in checked bags.
Christmas crackers are an essential component of British and Irish holiday traditions, but if you plan to bring them on a flight this winter, you might want to check your airline's rules to ensure they are allowed. For those who need a refresher, Christmas crackers are a type of interactive (and slightly explosive) holiday decoration. Two people pull on both ends of the Christmas cracker until it makes a snapping sound, leaving one person with a small gift, a paper hat, and often a printed joke to share with the table.