I bought that rubber snake to play a trick on Julian V, I placed it on top of the battery and hooked that rope underneath the bonnet so that when I said there's a hissing sound coming from the engine he would lift the bonnet and the snake would rear up, but it failed because the rope came unhooked. It's quite realistic looking though from outside so I've kept it on top of the dash with the rope attached to the grab handle as a security device, nobody's gonna break a window if they think it's real.