what do you want to achieve with this? If its simply to get a card/stock of cards to the top or bottom after losing/shuffling them, then why not use something like a br*****r crimp. The natural actions of shuffling then cutting like in a normal game offers the best cover, because its what people are used to seeing all the time in card games. If this isn't what you intend to use the pass for, then i doubt this is much help.....sorry