One of my favorite hunters in Metroid Prime Hunters, Spire, was the inspiration for my name that I now use in most places. Dialanche is Spire's Alt-Forme, and I used Dialanche ad my name in Adventure Quest. My friend used the backward potion, and it changed to Ehcnalaid. I thought that sounded really cool, and rearranged the C and H. That's how I got Echnalaid.
JIL, my SSBB screen name and Animal Crossing character has a strange origin. I was playing Brawl at my cousin's and he had a player name JIL. I asked him about this, and he just picked it randomly for no apparent reason, and said it sounded funny. I adopted that name for SSBB and some others. I play bowling under the name JIL, and I play in Local Pokemon and YuGiOh Tournaments under the alias JIL. Some people thought I was a girl.