Wooster gaming club

Dave- I don't know how the D&D weapon guys expected those to be used, but the historic mouth-darts were essentially self-contained mini blowguns. Like an inch-long hollow of bamboo about the size of a pen or a drinking straw with the dart stored inside it. That way you didn't repeatedly stab yourself talking with a needle in your mouth. You'd hide it under the tounge or between your gums and your cheek, roll it into place when you needed it, and puffed.

Any poison on the list labeled "Injury" will work fine.