The first corn we got my son saw the head pattern with a "V" on it (like most others do), so he named it Vern. Going only by visual cues along, I suspect Vern to be a girl, so I guess it's short for LaVerne.
I was going to go with a numerical coding scheme for the next four I got to use as eventual breeding pairs (and probably will) but my 6 year old insisted they all have "real" names. So I went with a Sitcom Theme. These 4 are Ralph, Alice, Ed and Trixie (actual breeding pairings might cause a bit of a scandal). There might be a Larry, Moe, and Curley in the future (but NOT a Shemp!). Then I'll either switch to characters from Mary Tyler Moore and all the spin offs, or All in the Family and all of it's spin offs. Unless I just go nuts and have a gazillion snakes, those two shows should provide enough names for the rest of my lifetime.