Prepare "Bingo Cards" with a grid that has 25 squares (5 across and 5 down). Have the guests write down what gifts they think the bride-to-be
will receive. (In each square) As she opens her presents, mark off all correct guesses. As soon as someone has 5 answers correct either diagonally,
horizontally, or vertically, shout "BINGO!"
Off course, you can use more or less spaces depending on the number of guests.