This trick is simply great - it is very visual and looks like pure magic.
And best part is that once you've done your preparation, its not difficult at all!
With a little training I'm sure you will be able to amaze everybody arround you!
Are you ready to learn it?
Video
Preparation
You will need: regular deck of playing cards, one duplicate card (duplicate to card you will force), one blank card (or Joker), plastic bag and paper clip
Take the force card, insert it into the plastic bag and seal it
Take your blank card (or Joker) and place it on the top of the force card outside the plastic bag (details in the video)
Fold plastic bag so it looks like both cards are inside
Secure this setup by paper clip
Step by step
Show the card in plastic bag to spectator - it will appear that there is only one card inside
Force the card on him. Use your favorite method
Once spectator remembers the card, ask him to place it anywhere inside the deck and shuffle it
Take the plastic bag, remove the paper clip and place it on the top of the deck, leaving our blank card / Joker on the top
Now the trick is done - reveal that the card inside the sealed bag matches his selection