There is a small chance to get random Ashlander furnishings (so far I've only got the cheese knife) and the Crimson Shard of Moonshadow from the dailies in Ald'ruhn.
Not exactly a quest, but if you have the shadowy supplier from the Thieves Guild you have a rare chance at getting furniture from each of her dialogue options (vile of blood from potions/poison option, sacrificial heart from gear option, candles of silence and light and shadows from stealthy option).