Plastic

Plastic was an artificial substance created on Earth by humans. The Nestene Consciousness had the power to control it.

Overview
Plastic could be moulded and shaped into objects when warm. It was used to make such items as mannequins, (TV: Spearhead from Space, Rose) telephones, dolls, inflatable chairs and artificial flowers. It was unusual for plastic to have a cold, clammy feeling. (TV: Terror of the Autons)

Only at close range could regular bullets penetrate and blow plastic apart. (TV: Spearhead from Space, Terror of the Autons) A cork fired at high speed from a champagne bottle could also penetrate plastic. (TV: Rose)

Anti-plastic was a substance specially designed to eradicate plastic. (PROSE: Autonomy, TV: Rose)

Plastic was made in factories, some of them being Auto Plastics, which specialised in automotive plastics, (TV: Spearhead from Space) and Farrel Plastics, which created everyday plastic. (TV: Terror of the Autons)

According to an online article in 2005, Dr Rhenborg was known for his "living plastic creations". (TV: Rose)

Fallout from the Last Great Time War rewrote the biology of the Nestene Consciousness, causing it to be made of plastic. (PROSE: Rose)

In the clean-up of Operation Mannequin, (PROSE: Operation Mannequin) the attempted invasion of Earth in 2005 by the Nestene Consciousness, (TV: Rose, PROSE: Rose) Sgt Catherine Petts and her UNIT personnel cleaned melted plastic, the remnants of the "mannequins", off the street. She quipped to her fellow UNIT officers on a secure operations board that the smell of melted plastic was a "shocker". Another UNIT officer, Staff Sergeant A. Frederick, attempted to seed a false theory with the press that the "mannequins" were made from faulty plastic that reacted to a gas explosion that only gave the appearance of movement. (PROSE: Operation Mannequin)

In the Unbound Universe, plastic was purged from Earth following an attack by plastic flowers. (AUDIO: Sympathy for the Devil)

Other instances
Polyethersulfone was a plastic produced at least on the planet Lakertya. (TV: Time and the Rani)