I collected this a few weeks ago from a panday (Brooke's Point Palawano) in a mountain village in southern Palawan. The blowgun itself was too long to practically carry so I couldn't bring it. The design was a plain length (>2m) of bamboo with ~20cm of black resin coating the tip. The quiver wood hook is bound to the bamboo with heavy fishing line and the rope attaching the lid to the body is nylon. He quickly demonstrated cutting a dart plug from the soft balsa-like wood. These are still commonly used in the more remote villages.

I forgot the last picture