Right off the top, I'd have to say that I'd suggest doing something with a simple, practical name. The "assault shaker"- pure brilliance. Short, sweet, suggests the utter practicality of things like shaker furniture (which is also tough, simple, and usable). Oh well, If I were to own one of these, I'd probably call it either:
Sting
Stinger, or
the Heartseeker --
(as it IS a neck knife, and thus would seek to be near your heart always to serve and protect you.) I'm not sure if these are lame or not, but when I buy one of these, it will probably pick up one of these names- despite what it may end up being called!
Thanks for the contest Jerry, as always, its a pleasure.