To inspire you for your Halloween pumpkin carving task, here are a few examples of Ray Villafane's work. They're from Fresh Pics. You can see many more pictures of his carvings there.
I have included one more example of his work other than the ones on this page. However, it is so terrifying that I thought it best to include it after the jump. I beg you, if you have a weak heart please not to follow the 'Read more' link to it -- I would hate to be responsible for traumatizing you for life.