What an odd top, and rather ironic. I grew up in Papua New Guinea and carried my sling all over the place. Never met a Nuginian who knew what one was, though most of them were fairly excited about a new way to kill birds - or each other for that matter. I don't know much about slings in the South Pacific. Their spears and arrows however, I know quite a bit about since I sat around making them with villagers in the western highlands growing up. Bows were made of black palm, an extremely hard and flexible wood with perfectly straight grain. Usually their bows measure 6 feet long. They actually use a thin variety of bamboo to string them and the "string" is around half an inch wide. A heavy bamboo is also used for bows and it is surprisingly strong - about a 40-50lb bow. They make their arrow shafts from a reedy bamboo they call pitpit. For bird arrows they take several points of bamboo and carve barbs in them and make a multiple head arrow. No fletching and a light head makes the arrows inaccurate past 30 or 40 feet. The pig or war arrows are usually long, up to 5 feet long using the same reed shaft and no fletching. The tips are most often made of black palm though other hard woods are used. I never saw stone tipped ones, though they told me they sometimes used stone. The hardwood tips were generally 12" long, sometimes more. I have a whole bunch here at home. They hold the tip to the shaft using a very finely woven mesh that acts just like chinese handcuffs (the kind you stick a finger in each and when you try and pull them out the woven tub clamps down on your finger).
With the 1/2" string on the bow, the back of the arrow just sits against the string - there is no notching of the arrow.
I saw many tribal wars and such and it's crazy to see a couple hundred guys in feathers and loin-clothes go charging down a mountain with an assortment of spears, bows, axes, machete's, shields, and a few home-made guns. No slings. And certainly not much on organized warfare. Probably for the better.
This is outside my house in PNG (on the other side of the fence fortunately).
It's probably good they didn't have slings. Riots usually involved large rocks punching holes in our yard. If they'd had slings the rocks would have made it farther and been punching holes in the solar panels on our roof.
Barak