There is a fairly well-documented sex doll subculture in Japan, and one of its leading manufacturers is Orient Industry. Gaga and Universal Music Group's Japanese branch recruited the company to make replicas of the pop star.
In this wonderfully creepy "making of" video, you can see Japanese craftsmen create the doll as a sinister soundtrack transforms into the single "Applause." Enjoy watching a group of men saw, stitch, paint, and mould a silicon-based naked woman, in a factory full of fake body parts, before handing it over to a "passionate" fan.
Source: NewsOnjapan