Spark plug

From Tardis Wiki, the free Doctor Who reference
Spark plug
TechnologyStub.png

By one account, Spark plugs were essential components of the Celestial Omnibus, and without them, the Celestial Omnibus couldn't work.

The bishop took them on the instruction of a future Iris Wildthyme and Panda. (PROSE: Iris Wildthyme and the Unholy Ghost)