Christmas cracker

Christmas crackers were an integral part of parties. They were pulled by two people and there was a resultant bang. They commonly contained novelty gifts and hats.

The Doctor pulled crackers with the Tyler family while dining with them at Christmas. (DW: The Christmas Invasion)

On Christmas eve, the Doctor pulled crackers with the Pettigrew family and Karzan Sardick. He hid a playing card within one. (DW: A Christmas Carol)