Making money with engineering Making money in the age of Northrend . The Mote extractor remains the Engineer ' s unique resource extraction tool , and so remains a source of revenue for the engineer in the Wrath of the Lich King expansion . End - game level guns also remain a source of wealth . Surprisingly , pets make a come - back as a source of income due to the pet collection achievements . While there was an early market for the motorcycle mounts ( among the most wealthy on each server ) , this market dries up quickly . The remaining people seeking them will generally have a guild member who can craft it for them ( given sufficient resources ) by the time they can afford it . On the other hand , with level progression available to 80 , fewer engineers are gaining the Consortium reputation required for Elemental Seaforium Charge s , expanding the market for those who have the recipe . Typically , though , this will be a ' tips ' market , as the engineer seeking parts for her flying machine will be able to provide all the parts for the charges . A slight resurgence of quest - required items can be expected as people go back through low level quests while working on their Loremaster achievement . The Mote Extractor . Perhaps the single most useful item for engineer s is the . With the Wrath of the Lich King expansion , several regions in Northrend have clouds containing Crystallized Air , Crystallized Water , and / or Crystallized Fire . When combined with a flying mount extracting these clouds for resources becomes practical . Note that there are clouds of Mote s in several regions of Outland as well . Market for those , though , is largely for players practicing their trade skills ; end - game materials has moved on to the crystallized materials . Guns and Scopes . As in times past , there is a market for end - game guns . There exists both a warrior - tank gun ( the Armor Plated Combat Shotgun ) and a hunter weapon ( Nesingwary 4000 ) . While there is some market for scopes , the speed of leveling means that scopes are often overlooked until quite late . And once a hunter has his ultimate weapon , he will typically only need a single scope . Pets and mounts . With achievements for the number of companion s one has collected , engineered pets are much more in demand . The Lifelike Mechanical Toad is a particularly rare recipe , and the pets created with it can bring a premium from hardcore pet collectors . Small pet s At skill of 450 , and with reputation with the respective faction , engineers can craft a mount : The mounts are race - restricted however . Engineers may charge a hefty fee to craft one of these mounts , or sell the pre - assembled item for a fixed fee . Engineers can make flying mounts too : Tradeskill Items . While these items are not required for end - game content , Engineers are still the sole source of them . Profession s With the fishing daily quests providing Sharpened Fish Hook s , the Aquadynamic Fish Attractor has a smaller market . Quest Items . 8 x 8 x 1 x 1 x 1 x 1 x 1 x Services . Services are using an item to do a service in exchange for money Using Seaforium Charge s you can open locked boxes . Just like a rogue , usually you do it for a fee or tip . Occasionally a player may need a mailbox or vendor in an out - of - the - way place and will pay a small fee for you to use or . Places where it may be required as there are no such facilities nearby : in a raid or dungeon , Darkmoon Faire at the opposite faction ' s zone , items for large turn - ins of rep such as Ravenholdt which may be stored in the mailbox . Everyman Items . These items do not require a skill to use or equip . The majority of them are in low demand , though . Consumable s Device s Equipment Professional Items . These items are crafted by engineers , for engineers . In most cases , they are specialization recipes ( gnome or goblin ) that do not require that specialization to use . In other cases , the recipes are reputation awards , and the products can be sold to those who have not yet done the required reputation grind .