Weave

The Weave were a race made of wool. The Eleventh Doctor met one on their home planet. She was seven or eight and welcomed him to a dinner. Her gave her a device to call him for help. When the Doctor, Rory and Amy landed on Earth in 1936, the Weave were hiding, taking the form of humans from the Tahnn. Rory was the first to find they were on the planet. He met a "librarian". She went to make him a cup of tea. A few minutes later, he went into her room and saw her face in a boat made out of a horrible green wool. Rory told the Doctor and the Doctor told them about the Weave and that they were hiding from the Tahnn. (NSA: The Glamour Chase)