http://www.gomediazine.com/tutorials/photoshop/how-to-create-a-leprechaun%E2%80%99s-shoe-in-adobe-illustrator-cs4

In this detailed tutorial we’ll be learning how to create a Leprechaun’s shoe in Adobe Illustrator CS4 for the upcoming holiday, St. Patrick’s day. Combination of linear and radial gradients can be very useful for achieving nice results in creating realistic vector illustrations.