Christmas crackers are a staple of Christmas celebrations in the United Kingdom and other Commonwealth countries. They are small, cone-shaped cardboard tubes filled with small gifts, paper hats, and jokes. They are usually pulled apart by the guests at the dinner table, and each person receives a cracker. The pulling of the cracker produces a loud popping sound, and the person holding the larger end of the cracker is considered the winner. The gifts inside the cracker can vary, but they often include small toys, candy, or other trinkets. It's a fun and festive tradition that adds excitement and fun to the holiday season.