Those geniuses at ThinkGeek are selling one piece of officially licensed Star Wars merch that you have to have!
The Death Star Tree Topper is a plastic 14oz replica of the Death Star with a 6″ diameter. The star glows red or blue with green in the laser dish.
And it plays the Star Wars Theme Song and the Imperial March!
Star is powered by three LR4 button-cell batteries (which are included).
Buy Death Star Tree Topper ($100.00)
http://www.thinkgeek.com/product/jgsv/
