Here is an Oldie but Goodie from Bob Solari.
A borrowed, signed, bill vanishes and winds up in a zippered leather key case. Easy to do, natural looking props, genuine leather, instant reset.
Complete routine and handling by Al Cohen.
Same props used by Darwin Ortiz for his effect “Show Down” in his book and video “Card Shark”. This prop is used by professional close-up magicians worldwide.
A simple solution to a high impact trick!