Christmas star
From Tardis Wiki, the free Doctor Who reference
A Christmas star was a star-shaped decoration associated with Christmas. The Webstar, which attacked London on Christmas Eve in 2007, was described as a Christmas star. (TV: The Sound of Drums [+]Loading...["The Sound of Drums (TV story)"], Voyage of the Damned [+]Loading...["Voyage of the Damned (TV story)"], Turn Left [+]Loading...["Turn Left (TV story)"])