Here are the ones I've received, from the lowest skill level to the highest (I'm 100 Leathercraft):
Exactitude Mantle (really low, like under 20 LC): Earth Crystal
Grass Thread
Lizard Skin
Immortal Molt
Finesse Gloves (probably around 60ish): Earth Crystal
Coquecigrue skin
Beak Gloves
Styrne Byrnie (higher than normal byrnie): Earth Crystal
Sub: Smithing
Darksteel Sheet
Dhalmel Leather
Tiger Leather
Behemoth Leather
Herensugue skin
Silver mail
Fowler's mantle: Ice Crystal
Wool Thread
Woolly Pelage
Kinesis Mantle: Earth Crystal
Ratatoskr pelt
Nomad's Mantle
Ebon Brais: Earth Crystal
Amphiptere leather
Shagreen (Said "Square of shagreen" I know there are shagreen files in bonecraft, not the same)
Studded trousers
Ebon Gloves: Earth Crystal
Sub: Goldsmithing
Platinum Ingot
Amphiptere Leather x 2
Shagreen
Ebon Boots: Earth Crystal
Sub: Goldsmithing
Molybdenum sheet
Platinum ingot
Amphiptere leather
Shagreen
Ebon mask: Earth Crystal
Sub: Smithing
Molybdenum sheet
Amphiptere leather
Shagreen
Ebon Harness: Earth Crystal
Sub: Smithing
Sub: Goldsmithing
Molybdenum sheet
Platinum sheet
Angel skin
Red textile dye
Amphiptere leather x 2
Shagreen
That's all I saw, but I could have missed a few.