The Klaatu Website is now offering a Klaatu themed skin for Spybot search and destroy. You can download it by clicking here.
The file is a zip file with two files inside (klaatu.ini and klaatu.jpg). Unzip the file to your spybot installation's skins directory. On many standard installations that will be:
C:\Program Files\Sybot - Search & Destroy\Skins
The next time you start Spybot S and D, go to Settings, then double click Skins. At the top of the screen is a drop down box. Klaatu should be listed in there. Select it, then click the Apply button. You should now have the Klaatu skin when you go back to the search screen.
Enjoy!
(P.S. Click On The Sun)