By Duane Laflin. How to Handle a Hank Ball. The hankerchief ball is a powerful gimmick when you know how to use it properly. This program teaches you everything you need to know. You'll learn how to use the hank ball for production items, vanishes and changes. How to secretly transfer the gank ball from hand to hand, how to use the hank ball for twentieth century silk effect, how to use the hank ball with sponge balls, how to do a variety of complete routines with the hank ball.