Here's a deal that's sure to be a trade show booth attention getter. This trade show traffic builder has a skin packaged card wtih a random playing card attached.  A standard 52 card deck is used. Attendee brings the unopened card to the booth, where he determines if beats the dealer. 

 You provide the graphics for the board, and determine which cards the dealer is to show.  An 11" x 17" custom printed display board is included. Dealer board is usually printed with 18 or 19. You determine the prize levels, a tie receives one gift, 20 would receive a higher gift, and 21 the delux prize.  

The post card, to be sent out prior to the show measures 6 3/4 x 4 3/4", and inlcudes one color imprint on two sides. Please call for more details, and for help in determing which prize will work best for your budget and target audience.