At work Mel and I made a Microsoft Worm pumpkin for the Halloween Party. Mel did most of the work, though. :)
As you can see, the pumpkin as a Windows logo on the front of it, with patches surrounding it; these are security patches that keep the pumpkin from being infected. There are still holes, though, and worms are getting in.
One worm has gotten in through the Windows logo. And there are worms entering in the backdoor! The picture is kind of blurry, sorry.
Click on the pictures to see a larger version.