FOREVERAH
Collecting since Sat 14 Nov 14:19: 0.5 of the ~14 days the models need to settle. Price history is real already; demand, pricing and forecasts firm up as data comes in.

Crafting profit

3 recipes priced on Horde Auction House 113
All AlchemyBlacksmithingCookingEnchantingEngineeringFirst AidFishingHerbalismLeatherworkingMiningSkinningTailoring Only recipes I know
Recipe Cost Sells for Profit Margin Sold/dayListed Gold/day
Greenhouse
2× Simple Wood, 1× Arthas' Tears, 1× Purple Lotus · Herbalism
23s 61c 34s 10c 10s 49c +44% 10.739 1g 12s
Incense Candle
1× Peacebloom, 1× Silverleaf · Herbalism
1s 35c 51c −84c −62% 20.9444 –
Seed Hybridizer
4× Mountain Silversage, 1× Crystal Vial, 2× Runecloth · Herbalism
80s 57c 3g 80s 3g +373% –6 –

Cost = materials at today's floor (v = not on the AH, priced at the vendor). Sells for = the crafted item's floor after the 5% cut. Gold/day = profit × how many sold per day lately (capped at 20): what you could make if you kept the market supplied. Recipes that make nothing sellable (most enchants) aren't listed.