Cane

Canes were long, hand-held rods, constructed of a variety of styles and materials. They were used by several humanoid species, primarily for assisting the elderly to walk. They did, however, frequently conceal other purposes.

Uses
In his first incarnation, the Doctor sometimes carried a cane, which he occasionally used as a weapon. (TV: The Chase, The Five Doctors; PROSE: The Sons of Grekk)

Ada Gillyflower used a cane to aid her in her blindness. In 1893, she killed Mr Sweet by beating the parasite with the cane repeatedly. (TV: The Crimson Horror)

In 1970s London, the Third Doctor used his cane, which had a built-in laser beam, to fight and destroy an alien which had been sent to assassinate him. (COMIC: Assassin from Space)

In 2007, the Abzorbaloff concealed a limitation field generator within his cane to control his abilities. When Elton Pope destroyed the cane, the Abzorbaloff and his victims died. (TV: Love & Monsters)

In 2009, Alistair Gordon Lethbridge-Stewart kept a cane gun which he used to knock out a Bane. (TV: Enemy of the Bane)

In 2050, Drake kept a dragon-headed cane. When tests on an experimental device failed, he used his cybernetic hand to crush the head on his cane in anger. (TV: Sirens of Ceres)

In his eleventh incarnation, the Doctor once used a sonic cane, which was similar, if not identical, in function to his sonic screwdriver. (TV: Let's Kill Hitler) At the end of his life, during the Siege of Trenzalore, the Doctor lost his left leg fighting a blind Tsunami Snake. After fashioning a wooden prosthetic for himself, (PROSE: The Dreaming) he used a cane to walk from then onwards. After being granted a new regeneration cycle by the Time Lords, the Doctor's vigor was restored and he tossed the cane aside in jubilation. (TV: The Time of the Doctor)

The elderly curator of the National Gallery in London walked with a cane. (TV: The Day of the Doctor)

Mikhail required the use of a cane in his older years. (PROSE: Reversal of Fortune)