I found a working stargate project on the youtube. Of course, it is not the real stargate from the ScFi drama "Stargate SG-1", it cannot make a wormhole to transfer you from one planet to another planet. It is a home-made model for simulating the gate dialing and wormhole establishment. The model is pretty nice, it used many leds to simulate the wormhole pattern. Take a look on this video:
Cool project by stargatemaster.