This is their whole descrition:
From it stepped a humanoid machine made from the junked droid parts he had expected to find on his journey.
The braincase of an FX-8 medical droid was bolted onto a body cobbled together from several types of outdated protocol models. Its limbs appeared to come from a mixture of EV and B1 battle droids, tipped with instruments and tools that wouldn't looked out of place in a workshop. Its sole functioning photoreceptor glared a bright, furious yellow. Its lurching gait achieved an appreciable speed before he sliced its head off.
A second patchwork droid emerged from a different rubbish pile, followed by a third. The sound of more droid golems stirring line from elsewhere in the Temple. The apprentice fought them with practiced ease. He had been dueling PROXY all his life; knew the weaknesses and strengths of droids, even one capable, by a clever use of repulsor technologies and a specially adapted antique training lightsaber, of imitating a Jedi. Ones such as these, with barely a matching part among them, were child's play.
If they were glued together and animated by the Force, such as this Galen would've taken note of it: