I don't need to do it in RL, because I've already done it here in cyberspace. See, half a lifetime ago when I went to school in Israel, I briefly met an adorable little girl with the lovely name Mazal (Mah-ZAHL), which is the ancient, poetic word for "star" in Hebrew and also has the connotation of "luck" (think of the English expressions "star-crossed lovers" and "thank your lucky stars" and you'll see what I mean).
I decided at that time that somehow, someway, I would use that name in my writing. Finally, a few years ago when I started writing "alternative" forms of fiction and commentary that I knew most people in my RL would not appreciate, It was suggested to me to find a pen name, so I did.
Question for anyone reading this: In addtion to the above question per se, what does your online "handle" mean and how did you choose it?