Altepa Eastern Desert - Very Common
Altepa Western Desert - Very Common
Batallia Downs - Common
Gustaberg North - Very Common
Gustaberg South - Very Common
Konschtat Highlands - Very Common
Sauromugue Champaign - Very Common
Tahrongi Canyon - Very Common
Valkurm Dunes - Very Common
Yhoator Jungle - Very Common
Yuhtunga Jungle - Very Common
Sanctuary of Zi'Tah - Common
As you can see, Choco Diggers get up A LOT of these, probably more than they want to AH, if you're a bonecrafter, ideally it's good to have a choco digger friend for cheap or free bone chips :)