Hahaha I have a few.
Elbelle
Elle belly
Ella Bella
Midget
Ell.

I have a few:

Minervini (Which is my lastname, mainly this one the most because my best friend is also called Nicole so people call us by our last names), Mini, Miners, Songwoman (funny story share between me and a friend)

Also the Bonewoman by a lot of my friends (because they find it cute or either weird that I love Bones so much lol)

I have a lot made up by my best friends, but I'm not going to write them cause they are just too ridiculous. :D

My best friend calls me Lols .She's my Lols and I'm her Lols :)
Also they call me Ant :) and my mother calls me Doudou!!Dunno why,he is a football player :P

jessi , jess , jessjess , sweety & cheery & stuff =)

Rach, Racheykins, I think there might be a couple more..

Lazza, Laurie, Blondie, Lala :)

Haha. My mom and two of my friends call me Steffi (that's how my mom spells it). Then there is Stubby (by two of my friends), Ste-Funny by one (she's Au-Dumb -- for Autumn) haha, a few call me by my last name, a few call me StephO (first letter of my last name is O) haha, two call me Stevie-Pat because my middle name is Patricia which doesn't fit me at all haha), and the rest of the world, with the exception of a few Stephanie's, calls me Steph. :) I'm sure in forgetting a few.

On here, Steph, Stephy Pooh, Stephy, Stones, Flesh, haha.

Margotje
Coco (my parents call me that)
Mar (my sister calls me Mar, but I hate it :p)
MG
Sexy Biatch (Celine)
Harriet (My dad calls me that, because I'm such a HP freak)
Margi Margot
My last name is also one of my nicknames

Chan Chan, Fish, Chandelier, Chappin Chandler, Bing, Chedder, Champ, Dork, etc :P

Angi.
Angelina
Angelina Jolie
Angigi
Ang
Rat (sisters)
Little Rat (Dad)
Pitu (Mom, no idea why hahahahha)
others hehe

Snickers! [My favorite!]
Nicknack
NikNik
Nik
BunBun
Shorty
NickyWicky
Nicker

All I can think of right now.