Today, I've just received the precious Google Desktop Patch. Hoho, after ~2 weeks of waiting.
Really it's a nice embroidered patch with a plastic back. You can stick it on your room's wall, put it at the front of your Computer Case, stick it on your T-Shirt so all friends ask "where did you get that?"
How do I receive a Desktop Patch?
Simply, submit a good desktop gadget to google.
How to I develop a Desktop Gadget?
Wish you luck :)
Submit Gadget form
Google Desktop SDK