A blog reader was nice enough to direct me to her site where I found this (and many other) really great activity for The Very Hungry Caterpillar!   Using common household items, you can make your own colorful caterpillar.  Great craft for preschool or toddler age children. You could even cut out shapes of the food the caterpillar eats (or pictures of the food from magazines) and stick them all inside the tube as you read the book.