I wanted the droid eye wallpaper for my captivate, so I went on searching and found one for a measly .99 cents. I said why not and bought it, it is amazing. You can pick the speed of the animation and also add the famous "droid" sound as you unlock your screen.

To find it just type "Droid X Eye Live Wallpaper" into the market.

 

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It is however a live wallpaper, it allows you set any tone to play when you unlock your phone. I used the droid one I put on my phone.