An instantaneous transformation! Make a train ticket appear in the empty pocket, transform cash into a real credit card, or...whatever
you can imagine!
 You receive a billfold-type wallet. When opened, there is a clear plastic window that is empty.
 Insert a sheet of folded white paper into the passcase pocket, snap the case with your fingers, and instantly transform the paper into genuine currency!
 The uses for this pass case are plentiful...You can also change one poker-size card for another!
 The passcase does not feel like a magic prop but rather an everyday carry item many people possess. It appears to be a natural, organic object with which you can perform eye-popping magic.