Malzies, Mal, Mall, Mal-Mal, Mowie, Mallaurie, Malz, and Mallokee. People always just recreate my name into a nickname. I'm not completely sure why seeing as I'm never like, "Oh hey my name's Mallory, but you can call me ___!"
I don't mind though and I'm not sure where they all came from. One person would just start saying one of them and then it would end up catching on with everyone I know.