From Thinkgeek:

The Star Wars Death Star Tree Topper features the iconic Imperial battle station as a tree topper. With the included remote you can have the Death Star itself light up blue or red with a green laser dish. Spice up your traditional holiday classic carols with the Imperial March or the classic Star Wars theme. Connect to the included universal adapter for continuous lighting effects. For safety, keep at a safe distance from Alderaan.

[Star Wars Death Star Tree Topper]