I was just recently leveling up my tailoring skill and came across an item called Wizardweave Leggings, and you can learn the recipe from the enchanting trainer at 275 Tailoring. What I noticed is the mats are 6 Bolts of Runecloth, 1 Dream Dust and 1 Rune Thread.
This may vary from server to server, but on mine 6 Bolts of Runecloth go for roughly 10g and Dream Dust go for a lot more. When disenchanted, the Wizardweave Leggings seem to give me around 2-5 Dream Dust and on some occasion a Lesser Eternal Essence.
Simply put, depending on the amount of Runecloth you have you can make an endless supply of money by making the Wizardweave Leggings and disenchanting them, since you receive more Dream Dust for disenchanting than you used to make them and Dream Dust typically sells for more than Runecloth. You can then sell the extra Dream Dust or Lesser Eternal Essences and make a lot of money out of this.
*This is my first shot at contributing so don't go too hard on me, I searched and this wasn't posted anywhere else and seems to me like it should work. If I missed anything please let me know. :wave: