World of Warcraft/Professions/Engineering
In engineering, a character can create various gizmos and gadgets that do a variety of tasks. Engineers can create little toys to play with and even make jumper cables that have a chance to shock another character back to life. The same materials that a blacksmith needs are what an engineer primarily needs as well. The engineering products sold at the auction house are targeted toward a smaller audience than the other craftable items from the other professions, because many engineering products require an engineering proficiency of a certain level depending on the quality and level of the item.