I guess I'll chime in on this one. Anything that's around me that would be useful in neutralizing my opponent would be fine by me but if I had a choice, my preference would be a Kali Stick and or a knife.
my yugoslavian underfolder ak47 will work for me http://www.ar15.com/forums/t_4_89/68612_Pictures_of_my_Yugoslavian_Underfolder.html