Bone daggers in need of identification
 

Hi all, I just bought a batch of small bone daggers.
They seller told them to be, from top to bottom:

New Guinea, another small bone inserted. The smaller bone wrapped in some kind of vegetal fibre. Length: 17cm / 6.7 inches.

Cambodia. Shaman ritual knife. 15cm / 5.9 inches.

Cambodia. Shaman ritual knife. The inside hides a small string with beads,
a small bone skull, and a Takrud roll. Takrud (Takrut) are sacred prayer scrolls wrapped up (rolled) and put into an amulet for Buddhist followers in Thailand. Takrud amulets are popular and are said to ward off evil spirits, bad luck, and bad health. 16cm / 6.3 inches

New Guinea. I have two of those, pretty similar. One is 20cm / 7.9 inches, the other ons slightly longer. Both have the same kind of " drilled " decoration. Both have very lightremains of a red pigment.

Any help on identifying would be very appreciated.

I CAN'T BE OF MUCH HELP ON THE ONES IN THE FIRST PICTURE BUT THE THIN ONE IN THE LAST PICTURE LOOKS LIKE A LIME STICK.