I am Cooky to all of my family, or what’s left of them, and have been all of my life. I also was known by that name all through school and I must say, it never has bothered me any.
My sister, who was always Sis to everyone at home, gave me the name. Apparently I would stand in the playpen and say “Kooky” (long o) over and over so Sis started calling me that and it caught on. Over the years the long “o” disappeared.
I had two nicks, one in high school and one in the scouts.
In the scouts I was called “der fuhrer” because apparently I looked like the original when I was angry. I saw a picture taken of myself in uniform with the Scout sign position (right arm at 90 degrees to the body, elbow straight up) from slightly below chest level, angled up so that my arm appeared to be pointed straight out instead of bent. I’ll admit that the resemblance, while not uncanny, is there. The fact that I’m half-German didn’t help. It mutated into “Adolf” and then just “Dolph.”
In school I was called “Friday” because I talked like Joe Friday. Quiet, deep, and to the point. Thank heavens my other nickname didn’t catch on there.
My brother has called me Pidge as long as I can remember, but lately he has been calling me squirt due to me being 5’2 and a half. At college while talking with friends I complained about not having a nickname, so I was dubbed Bob (a short verson of my last name) no one thought it would stick…It did. Im now called Bob, Robert, and Bobby by friends which is odd since I am a girl.
I have an entire circle of friends with a related set of nicknames.
There is the boy, the brother, the boy’s wife, the brother’s wife, the roommate, the roommate’s wife, the neighbour, the neighbour’s wife, the buddy(me), the buddy’s wife, the big daddy, the big mamma, the idiot, and the idiot’s husband.
Oh, and 'the ___‘s wife’ does not literally mean ___'s wife, its just to confuse outsiders - and the boy & the brother are brothers; (that what their father calls them) thats where the whole thing started.
Dang, I thought my name was rough… I can’t believe someone would name their kid ICan’tBelieveIt’sNotButter! Do you pronounce it with that weird faux-European accent like in the commercials?
Oh god…hrm…my family likes to make up names…
Megacrunch, Munchy Crunchy Woowoo, Megabyte, Megawhompus, Megsie, Megadorphus, The Baglady… I know there are more, but enough with the humiliations. :o
Only if you’re my grandparents. 
The rest of us follow standard North American pronounciation - west coast flavour.
I, too, come from a nickname-intensive family (where real names were generally only used if somebody was pissed), so I am:
Peetie (variations: Peetie Mae, Peetie Mae Brown)
Chomp (variations: Chompa-doo, Chompa-Bompa)
Elmo
I don’t have many nicknames (that I know of, anyway) from school, but when I was a freshman in college, I dated a fella who couldn’t for the life of him pronounce my name. It’s not hard. It’s Chandra (with a hard “Ch”, like in “Cheese”).
He, however, always called me “Chan-ja”, which my roommate found HILARIOUS, and so started calling me that, too. Then it morphed into “Chanjee” (fun… AND affectionate :rolleyes: )
Now it’s “Chanj”, for pretty much everyone I know.
My dad always calls me Lisa Ann. Never had school nicknames, but in 3rd grade I was referred to as “LA”, to differentiate myself from two other Lisa Anns in my class - Hated It! Mr. Lisa Ann calls me Peanut, Punkin and (my favorite) Punk!
Let’s see …
Tubby
Fatso
Pudge
Dummy
that covers ones from my Dad.
From other people? Probably more of the same.
Well my Mom and gradparents still call me peanut a name given to me when I was about 4.
In grade school I was Lurch for a long time due to a growth spurt.
In HS I was called pup because one girl once commented that my eyes looked like a Pound Puppy.
My wife calls me Evil.
My whole family… even my aunts and uncles call me Brother. Why? 'Cause I’m like the only male “child” as it were. Most of my cousins and whatnot are girls on both my mom and dad’s side. Save for Greg, who’s 33 so he doesn’t count, and Justin Michael, who’s 4. 
It gets kinda confusing actually. Especially at my grandmother’s church. I go there from time to time when I’m home, and everyone there has adopted calling me Brother as well. If anyone new ever comes to the church, they always wonder how someone so young could have become a deacon.
Around work everyone calls me Semi. I love this nickname… I even have it on my business cards.
I call Serendipity, Tummy. My little pet name for her. 'Cause of course, she has the best little tummy. Hehehee.
My grandpa called me Kimberley Clark. He would even use that nickname when he wrote me letters and sent me cards. Kimberly-Clark is a company that makes toilet paper!! (They may make other things but I’ve only seen the name on toilet paper packaging!)
One of my best friends started calling me Kiki when we were in the 7th grade. She still calls me that. (My nickname for her was Fish!)
I was also called Kimberlina, Kimbro, and Kimmy.
Bo
And I hated it, but my family always called me that. It took me years of complaning to get them to stop!
Do not despair, Kiki, Kimberly Clark also makes Kleenex brand soft tiss-ues. Wait a minute…those do collect boogers, but TP collects…um…let’s not go there. Despair if ya wanna.
Flipper
As a small hardygrrl, I loved to swim, loved dolphins and had to be phyiscally restrained from jumping into nearby bodies of water. My grandfather called me it one day and it stuck.
I still love dolphins. I even have a tattoo of one on my shoulder.
Fat or Fat Fat
Because when I was a lil baby, I was just the most adorable and fatest thing you ever did see. I grew out of it, but I kept the name. My uncle has always called me that. It’s funny.
Jenny*
Pookie is one that I got on the first day of my 10th grade year. I was in class and some guy said that he was going to call me Pookie. I don’t know why. There are only a few people that still call me that. My dad used to call me Buckshot because I was always all over the place as a baby. Austin Powers is one of the more recent ones.
Oh I have you all beat. You see none of you were stuck with the last name of Ball so then you have all SORTS of stuff avalible then. I am always called one of four nicknames. They are…
Ball
Balls
Big Balls
Ball Sack (only one person calls me that)
Then you get into some really good stuff. Anyone know how to say “Mister” in German? Well its…Herr (pronounced “Hair”)…Yeah Yeah Yeah…I am called Herr Ball sometimes. heh. I really dont mind all of the names. I find em funny, and I’m glad that I can be the excuse for someone to yell Big Balls across a crowded room.
Simetra is the only one who calls me “Tummy” (he’s also the only one who I’d let get away with it).
My parents called me “Pumpkin” or “Punky-Doodle” when I was little; now, they call me “Jessie-Katie” or “Pookie,” but only when they’re teasing me.
My younger sister was “Boober” (like the Fraggle) when she was little, although these days I tend to refer to her as “Princess.”