Christmas cracker
Christmas crackers were an integral part of Christmas parties. They were pulled by two people and there was a resultant bang. They commonly contained novelty gifts and hats, known as Christmas hats.
The Tenth Doctor once pulled crackers with Rose and Jackie Tyler while dining with them at Christmas. (TV: The Christmas Invasion)
On Christmas Eve, the Eleventh Doctor pulled crackers with the Pettigrew family and Kazran Sardick as part of their celebrations. He hid a playing card in one. (TV: A Christmas Carol)
While trying to have a peaceful Christmas with the Ponds, the Eleventh Doctor hastily pulled two crackers with Amy Pond before he was forced to head off to deal with some impending Christmas-related threats. (COMIC: Who Who Who, Merry Christmas)
Clara Oswald had a cracker at her family's Christmas celebration, but later took it to an aged Eleventh Doctor on Trenzalore. (TV: The Time of the Doctor)
In a dream crab sequence, the Twelfth Doctor and an elderly Clara shared a cracker. (TV: Last Christmas)
On Puxatornee, Professor Capra asked the Seventh Doctor and Mel if they wanted to pull a cracker. (AUDIO: Flip-Flop)