i know what you're talking about. in the Hung Gar Tiger style there is a weapon/style called "iron cloth" or "Iron thread" this method teaches techniques for using onesown clothing or bits of cloth like a whip or a similair flexible weapon. chokes, immoblizations, throws, strikes etc. where all taught. some people who chose this as their main weapon used long silk cloth about one foot wide and 9 feet long. some people sewed smnall weights into the end to make strikes more effective. some even went as far as to elongate their sleeves to help conceal the weapon. Also, in the style of Arnis i studied, a handerchief or bandana was used as a weapon. it was used for joint locks primarily. however, if used like a whip one could easily slice skin. sounds impossible? i've done it.