Mine is of the alpha and the omega of the Star Wars universe... Mr. Binks!
The story behind it ties into my username. Many, many years ago I bought an Xbox and was trying to sign up for Xbox live. After many failed attempts at coming up with a unique gamertag, I thought "What is a name no one would have?" That is how jarjarisgod was born. I typed it in and of course nobody else had used it. Now it has become my proverbial cross to bear for all time.