Highwayman's Friend

The Highwayman's Friend is a unique form of the Tire Iron, and is found on a shelf in Dominic's and Machete's garage in Canterbury Commons in Fallout 3.

YouTube video for location:  QM1ygK3qfO8

Trivia
Possibly a reference to the Highwayman, the only vehicle in Fallout 2, especially since this weapon is a Tire Iron.