Monsters with Natural Poisons Poisoning Weapons

[THUNDER_Jeffro]

Is there any rule to support a monster using a poison associated with its natural attacks (for example, an ettercap has a poisonous bite) and applying it to a weapon or trap?

If there is no general rule, are there any feats or specific options to support this?

[Talonflash]

THUNDER_Jeffro wrote:

Is there any rule to support a monster using a poison associated with its natural attacks (for example, an ettercap has a poisonous bite) and applying it to a weapon or trap?

If there is no general rule, are there any feats or specific options to support this?

I know Vishkanya can poison their weapons once/day - it's our Skull and Shackles summoner's desperation move.

[blahpers]

The creature would need to have that as a listed ability.