New or Modified Advantages
You may be looking for Deadlands\New Advantages
You may also be looking for Borderlands\Houserules Traits, Templates, and Skills
Random new advantages and stuff.
Injury Tolerance: Unbreakable Skin
Your skin, or some other covering is soft and flexible but impenetrable. All Cutting, Piercing, and Impaling attacks are treated as Crushing for all purposes (including which locations can be targeted.)
You do not Bleed, but are still vulnerable to blood born pathogens and blood chokes, etc. You are also immune to Dismemberment, but crippling injury effects you normally.
Note that this does not include the benefits of no brain or no vitals, but many people will buy those as well.