Bone Helm Recipe and Normal Set Drop - Craft Chance:

 Worm

100%

Bone Armor Recipe and Normal Set Drop - Craft Chance:

 Yeti, Ghost

100%

Bone Pants Recipe and Normal Set Drop - Craft Chance:

 Yeti, Ghost

100%

Bone Gloves Recipe and Normal Set Drop - Craft Chance:

 Ice Monster, Hommerd

100%

Bone Boots Recipe and Normal Set Drop - Craft Chance:

 Ice Monster, Hommerd

100%