How do I make a cel shading effect with basic parts or meshes?

[synical4 (Synical)]

@nicemike40

local cf = script.Parent.CFrame
local right, up, back = cf.RightVector, cf.UpVector, -cf.LookVector

local function BreakRightHandRule()
	-- just flip one of them
	script.Parent.CFrame = CFrame.fromMatrix(cf.Position, -right, up, back)
end

BreakRightHandRule()

This didn’t make the part look any different.
Im using a part with its shape set to cylinder.
I put that script in the part and then copied it after playtesting the game.