Lammasteen

The Lammasteen were a race of aliens, who utilised "non-technological" technology.

Appearance
The Lammasteen were humanoid, with green-brown skin and large foreheads. (REF: The Brilliant Book 2011)

Technology
The Lammasteen utilised a unique and arcane form of science; By balancing the resonances of shapes exactly, they could create sophisticated machines out of ordinary objects. (REF: The Brilliant Book 2011)

History
At one point in history, the Lammasteen's homeworld was beset by a terrible plague. They were saved by the Doctor, who was rewarded by the Oligarch of Lammasteen with a toaster, which he initially mistook for a shower unit. (REF: The Brilliant Book 2011)

When the Doctor was stranded on 21st century Earth, he constructed a scanning device out of junk and household utensils, evoking the Lammasteen's devices. When he shared his knowledge with Craig Owens, Craig understand its function. There was a picture of a Lammasteen on the wall of Craig's hallway. It is possible the Doctor put it there. (DW: The Lodger)