Make someone choose a card (the 10 of hearts for example).You pretend to have placed it in the wallet. Open it, there is a white card inside. It seems you fail.
Close the wallet and open it again. This is the chosen 10 if hearts which is now inside ! Inbelievable !This trick is totally automatic.
Included : The wallet
A deck of Tally-Ho cards
A deck Tally-Ho Mirage
10 white cards.