@Uwk, do what I did. Make sure you have a plethora of mats, those 99 DBC crafting boosters, exp potion I had one of 70%, and a workbench handy. I have Tinkering 31 on one toon, and Tinkering 51 on another one. Now I have lots of miscalculate boots, Troll snot throwers, etc. But I am cranking out Tinkering. They sell for 24 copper pieces on merchant NPC.