The New Quest QA - Planar: Gnasharim - Valley of Faces makes use of one type of placable (Called Discarded Debris) to reward treasure. However it uses the same treasure loot table as fallen living enemies (Bandits, goblins, kobolds) instead of a unique one designed for the quest.
The gold reward is also rather low, especially because it does not scale with the amount of people taking the quest.
On the other hand, the exp reward is rather high. 733 xp at level 7, for a max level 8 quest.