Im trying to make a Model have more than 2 arms so I can Use that in a character, but my script wont weld the Extra Arms to the model, Any Help?

l = script.Parent
for _,v in pairs(script.Parent.Parent.Parent:GetChildren()) do
l.Part0 = v:findFirstChild("Torso") 
l.Part1 = v:findFirstChild("Extra_Arm1")
end

DONT DOWNVOTE! THIS IS A SERIOUS QUESTION!

AnonymousEdited