Leaf Blower (Fallout 3)

The leaf blower is one of the four components needed to assemble a Rock-It Launcher.

Locations
Vault 92 Directly in front of the Vault door control Pod, at the entrance.
 * Several leaf blowers can be found in the town of Minefield, often lying very close to or up against the walls of intact houses.
 * You can find 3 on the shelves of Lucky's.
 * One can be found inside of the RobCo Facility on the first floor of the Offices and Cafeteria, in the hall accessed through the door to the left of the entrance.
 * 1 in small town between Jury Street Metro Station and Evergreen Mills.
 * 1 in Fort Bannister, main area (through either of two Very Easy doors).
 * 1 in the basement of Charnel House, laying beside a sand bag barricade.
 * 1 in the Yao Guai Cave. it is laying by a fallen shelf near a pile of sandbags.
 * 2 in Vault 87. Both in Living Quarters, 2nd level. First on a shelf in dead end room with a burning barrel, the second up through the viewing deck area, across, left & down stairs.
 * Moira Brown has one for sale along with the rest of the parts necessary for making the Rock-it Launcher.
 * 1 in the church SW of the Jury Street Metro Station.

New Vegas

 * There is one in the NCR Correctional Facility on a bed behind a locked door (if it's not there it is somewhere in the facility)