Mad Bomber

 is a perk in the Fallout: New Vegas add-on, Gun Runners' Arsenal.

Effects
Specialized training is now available for wastelanders with a talent for Repair and a love of Explosives. Crafting tin grenades, fat mines, and even devastating Nuka-grenades are a snap with this handy perk.

Crafting weapons

 * Bottlecap Mine, Efficient - Explosives 85, 1 lunchbox, 8 caps, 1 sensor module, 3 Cherry Bombs.
 * Fat mine - Explosives 80, 1 Mini Nuke, 1 Scrap Electronics, 1 Scrap Metal, 1 Sensor Module.
 * MFC cluster - Explosives 70, 1 Duct Tape, 18 Microfusion Cells, 2 Scrap Electronics.
 * MFC grenade - Explosives 50, 3 Microfusion Cells
 * Nuka-grenade (Gun Runners' Arsenal) - Explosives 60, 1 Abraxo Cleaner, 1 Nuka-Cola Quartz, 1 Tin Can, 1 Turpentine.
 * Time Bomb, high yield - Explosives 70, 1 Duct Tape, 6 Dynamite, 1 Egg Timer, 1 Scrap Electronics.
 * Tin grenade - Explosives 25, 1 Duct Tape, 50 Powder Pistol, 1 Tin Can.