Rather than have a skit, would it be possible to reserve an open room for boffer play? Various games would involve duel tournaments, team battles, multiplayer grand battles, and possibly story arcs to the war between pocky ninja villages. People would line up and take a headband and matching colored sword after reading the brief rules of play and safety, fight the opposing player in 2 out of 3 matches, then move to the back of the line while the winners remain.
Same rules of contact: Shots to the head/neck do not count, hits to the shoulders and torso count as a kill, hits to two limbs count as a kill, groin shots will not count just as head and neck won't. Plus I'll have slips of paper with LARP club info attached to candy handed out to the people before they leave.
I recall a similar panel being done last year, but stopping short after the person hosting it left the room.
I plan to have some assistants and con staff present to ensure safety and supervision.