Shishkebab (Fallout 3)

Shishkebab is a "flaming sword" that can be made from a motorcycle gas tank, a motorcycle handbrake, a lawnmower blade, and a pilot light. It can be constructed with the use of proper schematics.

The Shiskebab instantly sets enemies on fire upon contact, dealing 2 damage a second for 5 seconds. Its schematics are given to the player by Vance at the end of the "blood ties" questline.