I've taken to using a theme for my screen names. I used to use a nickname that I gave to my mother, and added jr. to it. I've used that one for so long, I just tired of it.
Now, I have a trio of screen names, which are a first name that you probably would have heard "back in the day" and a food. Hence, StellaSquash.
I also call my daughter Stella, even though her name is Emily. For some reason, I nickname my loved ones something completely different then their given name. My daughter loves when I call her Stella Bean. lol
I love this idea so much I've even created my own domain name for my original of the trio. Unfortunately I don't have the time or enough know how to get my website going.