Step 1: Blow up balloons in the colors and sizes of fruits (Purple small ones for grapes, medium red ones for apples, long yellow ones for bananas, etc.)
Step 2: Cut out leaves and stems from the paper and tape them to your fruits.
Step 3: Tape the fruits to a long piece of string and hang it up for a party!

Source: http://stuff.icanhascheezburger.com/