If you own the Raven, the Bat, or other PK stuff, then shimmed cards are a great addition. A few
things you can do with these are changing one card into another right in the spectators hand,
vanishing the card, or even making it spin in their hands. For anyone familiar with the Raven, just
make sure you practice a lot because it's a lot easier to get caught with these as apposed to a
coin.