That's where the money is at in Tradeskills, and why Alchemy is by far one of the best tradeskills. Consumables - Your market NEVER ends, and that is why in the real world everything is based on consumables.
So, how do you put consumables in other tradeskills? There could be some easy ones, that would even compliment alchemy.
Pottery: You could make special vials that the shaman could use in their recipes to give enhancements. Duration bonus on the length of the potion.
Tailoring: Tailor a special water skin, that has 2 slots, where you could put in two stacks of water (or other beverage). Combine the skin, and the two stacks to make one stack that lasts 3x as long.
Smithing: No rent augments! You could make augments that added to resists, or main stats that worked on plate/chain and metal weapons.
Jewelcraft: Augment boosters. Most of the augments i've seen were gems anyway
Brewing: Stat beer that stacks with stat food/water (Not a brewer, so this may already be there - i have just never heard of it)
That's about all my ideas for now
So, how do you put consumables in other tradeskills? There could be some easy ones, that would even compliment alchemy.
Pottery: You could make special vials that the shaman could use in their recipes to give enhancements. Duration bonus on the length of the potion.
Tailoring: Tailor a special water skin, that has 2 slots, where you could put in two stacks of water (or other beverage). Combine the skin, and the two stacks to make one stack that lasts 3x as long.
Smithing: No rent augments! You could make augments that added to resists, or main stats that worked on plate/chain and metal weapons.
Jewelcraft: Augment boosters. Most of the augments i've seen were gems anyway

Brewing: Stat beer that stacks with stat food/water (Not a brewer, so this may already be there - i have just never heard of it)
That's about all my ideas for now

Comment