One of the most famous caterpillars in the world is no doubt the one featured in the book The Very Hungry Caterpillar by Eric Carle. The illustrations by Eric Carle are made with a collage of various colours of paper, but you can achieve a similar effect using potato painting techniques. In this video I show you how to paint The Very Hungry Caterpillar.
The downloadable document contains the list of materials you need and illustrated instructions.
This is a free document.