David Samuel Menkes is a leatherman that designed Lady Gaga's Rifle Barrel Bra.
 The "Rifle Barrel Bra" is a prop used in the music video for "Alejandro". The bra was custom made by Gaga. She also wears this bra on the cover of the summer 2010 edition of Rolling Stone magazine.
The piece consists of two Rifle Barrels attached to a simple black bra using long springs. Due to its weight, the bra is strapped to Gaga's chest with several straps instead of the usual two. A modified version of this bra with added ammunition cartridges was used for the Rolling Stones cover page, and to everyone's surprise, David Samuel Menkes revealed that the new version can actually shoot bullets out of the rifles.