NightLights

It's time to decorate your Mac with blinking lights! It doesn't matter which holiday you're celebrating, there's a color combination for every need.

NightLights comes with both "Mini", "C7" type, and novelty shaped light bulbs. You can choose to display either or all. You can also choose the blink time, blink random, or choose to have your lights burn steady.
You may use NightLights for FREE, but if register for $5.00, you get four more bulb colors, eight novelty shaped bulbs, "Desktop Mode", "Text Message", and weather options.