Basically just a follow on from what I mentioned in the Class Specific Wings thread.
I suggest a farming hat that drops items used in cooking. Cooking sets would be the most obvious drop, but some of the rarer cooking ingredients would be nice too. Ingredients such as prickly fruit and cheese are generally difficult to farm in the quantities required for cooking.
I like the idea of cooking drops, but for the most part almost nothing is difficult to farm. Some things just take longer than others. There's just a lot of food that's much, MUCH easier to make due to ingredients. Now the better cooking kits would be nice but any cooking kits would work.
And I'd wear cheese around if it meant getting a few extra things.