Such artificial human beings are actually offered for sale in the catalogue of certain manufacturers of "Parisian rubber articles. But things get a bit weird when the object of your affection is a lifelike sex doll. Other less common novelty love dolls include overweight, intersex, elderly and alien dolls, which are usable for pleasure but also tend to be given as gag gifts. Read More Vibrating penises and bionic arms: Firstly, the last twenty years have seen huge improvements over earlier types of sex dolls, and customers come to realize this through using the web. Their name originates from the term, possibly English, for the thick rattan or bamboo bolster , used to aid sleep in humid countries by keeping one's limbs lifted above sweaty sheets. The market has grown for two main reasons. They often burst at the seams after a few uses, although they are commonly given as gag gifts and therefore many may not be used at all. Kathleen Richardson, a senior research fellow at De Montfort University in Leicester, has called the development of sex 'bots a "disturbing" trend that needs to be stopped. Either way, it's surely because of loving couples like this that Warcraft - based on the popular video game - has shattered Chinese box office records. By the s, vinyl , latex and silicone had become the materials most frequently used in the manufacture of sex dolls; silicone in particular allowed a greater degree of realism. Secondly, the method of retail purchase has also improved, now showing customers what the actual doll, seams, hair, and even orifices look like. Dr Helen Driscoll, a leading authority on the psychology of sex and relationships, said 'sex tech' was already advancing at a fast pace. Both this company and the company "First Androids" once offered pelvic thruster motor, audio capability and heated orifices, though these options are no longer available. Dolls made of either material can be very lifelike, with faces and bodies modeled on real people in some instances, with realistic skin material similar to that used for movie special effects , and with realistic or even real hair. Latex dolls were made in Hungary, China and France but only the French manufacturer Domax now remains in production. That's exactly what one man in China did when he took a hyper-realistic blow up love doll along to see the new Warcraft movie.