Lammasteen

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

History
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)

Behind the scenes
According to The Brilliant Book 2011, a non-canonical REF book:


 * The Lammasteen were humanoid, with green-brown skin and large foreheads.
 * 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.
 * At one time, 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.