P.I.S.T (Psychological Imagery Sign Test) by Brad ManuelComedy Mentalism with a double whammy "customizable" climax You can chose the second climax to fit a magic production prop you may already have! Effect An audience member is invited on stage to help with a Psychological test, similar to an ink blot test You show an empty bag which is placed under the chair they are sitting on. You then show then the P. I. S. T. book or "Psychological Imagery Sign Test" which contains pictures of random objects of