Balmoral bonnet
From Tardis Wiki, the free Doctor Who reference
A Balmoral bonnet was a type of hat from Scotland.
The Fourth Doctor once donned a Balmoral bonnet during his first encounters with Zygons and foiled their Skarasen gambit in Scotland. (TV: Terror of the Zygons [+]Loading...["Terror of the Zygons (TV story)"], PROSE: Time Lord Style [+]Loading...["Time Lord Style (feature)"])