Yes, I name mine. FW is Shelley (name my child would have been named if he were a girl). Viking D1 is Susie (after my mom). My Viking 183 is Teal (since the front of the machine is that color) and finally my Viking 150 is Blackie (it's black) I know they are really creative but always made since to me.
I also name my cars, Little Red, and Red (they are both bright red).
ha Ha