Pinata Birthday Game
This is a game that needs plenty of room - the kids are blindfolded and are given a stick They try to break up a hanging container that has sweets chocolates and other small goodies in it.
You can make on of these up by decorating a paper bag with paints or crepe paper and then sticking the top shut once the sweets are inside. Tie a string along the top edge before closing the bag. You could also make a fancier one with a balloon and paper mache. The great thing is that you can decorate it to match any theme. Or you can a pinata to match your party theme.