Quarks were originally the robot servants of the Dominators. The Dominators Rago and Toba took a party of Quarks to the planet Dulkis and had them drill a shaft, through which a device could be dropped that would cause a planet-wide volcanic eruption and make the planet an ideal source of power for the Dominators.
The Second Doctor and his companions Jamie McCrimmon and Zoe Heriot were on Dulkis when this party arrived. Along with the Dulcian Cully, Jamie destroyed a number of Quarks through various methods. He destroyed one by shooting it with a gun, distracted one while Cully smashed it with a large boulder, and used explosives to destroy a third. The Doctor managed to catch the Dominators' bomb as it fell down the mineshaft and, as the Quarks and Dominators prepared to leave, placed it aboard their craft. Once the ship was in flight, the bomb detonated, destroying the remaining Quarks and their masters. (as seen in the Doctor Who stor 'The Dominators')
This is an unscripted prop for decoration only, and weighs in at only 2li
Nice cheap and cheerful display item.
Nice cheap static display Who items. Moving arms, head and maybe a few sounds would enhance and it would no doubt dominate the Quark market :D