World Model Material

[arandom]

I was just wondering if I could change the material of the world model, without making a whole new model.
Could I do something like this?

GetWorldModel():SetMaterial("example")

Sorry if that is horrible, I am a lua noobie here. :p

[HornetPilot]

if CLIENT then
   function SWEP:DrawWorldModel()
      if not self.Owner or not IsValid(self.Owner) or self.Owner != LocalPlayer() then
		 if not self.set then self.set = true self:SetMaterial('materialhere') end
         self:DrawModel()
      end
   end
end
end