Weapon that counts as Natural Weapon

[plaugebearer]

Are there any weapons that count as Natural Weapons for the purposes of spell and feats? If so which ones do the most damage for a Medium size character in D&D 3.5

[Urpriest]

Well for one, Natural Weapons themselves count as natural weapons, and fit your request. But putting that aside, you can turn any manufactured weapon into a natural weapon with the Graft Weapon psionic power.