While a lot of the techniques Alexander tries to use for Prism are good in theory (probably be
better explained in Peter Turner's work and Luke Jermay's works) and they can be used for methods:
jazzing and pumping to get a color... the use of the dual reality in this trick will absolutely not
be effective (the participants reaction will not line up with the reaction the audience expects.)
Unfortunately, if you're looking for a direct solid propless color reveal, I
would suggest passing on this download.