I have leatherworking and engineering as professions and the only item I’ve managed to sell from these two professions was the “Lord Blastington’s Scope of Doom”.
It is a bow enchant and every hunter that is doing PVE will want it.
The mats to craft this item cost around 500-600 gold if you buy them from Auction House. You also need one Spirit of Harmony also.
You can put the crafted item into Action House, the “Lord Blastington’s Scope of Doom” for 2.500 gold if there is none available. I sold around three of them like this, and they sell pretty fast. There are times when there are no scopes at all in AH.
The profit should be around 2.000 gold which is not bad.
How do you make gold with this professions?