This is a schematic weapon with 501 damage. It is built from a lunchbox, a cherry bomb, a sensor module, and ten bottle caps. The schematics can be obtained from Moira in Megaton, Knick-Knack in Little Lamplight, Herbert Dashwood's sale in Tenpenny Tower, and Jocko's Pop & Gas Stop. Every schematic increases the number of mines created per set of materials, up to a maximum of three.