Hostess blog has a very simple food table layout featuring the fruit from the beginning pages of the book. You could even group the fruit to match the number the caterpillar ate.
Get the instructions here:
http://www.hostessblog.com/2011/06/the-very-hungry-caterpillar-birthday-party/
Crafts by courtney has a similar idea.
Get the instructions here:
http://www.craftsbycourtney.com/diy-parties/very-hungry-caterpillar-birthday/