Times change....
A lot o' mine went after I left school, but a few have stuck. Psycho hung around for a few years (after my "skill" with a hockey stick and the height the ball used to travel at), but went when I left Uni. "The Godfather" was another one, but people got bored with that after a while.
Wookie is the prominent one (due to being Chewbacca's height and usually very unshaven), but I picked upa new one the second time I was on Alderney. I am apparently know as No. 7 to quite a few of the Islanders.
It all came from people mis-hearing what I said to a barmaid in my [now] local and my room number at the hotel I was staying in.
That's about it really. Mind you, with my name, I don't really need a nickname. I prefer No. 7 or Wookie. Bother are short and easy to shout when the **** is hitting the fan.
Wookie