A cute little trick that you'll always keep in your pocket!
You show two cards from a regular deck of cards; say the Queen and the King of Hearts. You also tell a story about the couple being courting and being in love with each other. The two cards are placed one on top of each other and after nine months (well, you do not have to wait that long!) a miniature card (the Jack of Hearts) appears from between the two cards; a complete family: Mum, Dad and the baby!
Complete with all the special cards and suggested patter (the cards can be removed from a regular deck).